Understand the foundations
Learn the language before comparing tools, prices or vendors.
English Blog
AI agents, GEO and phygital - in English
124 articles from a hands-on agency in Ho Chi Minh City: how small businesses put AI agents to work, how to get cited by ChatGPT and Google AI Overviews, and what 24 famous brands teach about experience and branding.
TL;DR
This is the English index of the Chạm AI Agency blog: 124 bilingual article pairs covering AI agents, phygital, GEO and AI search, branding, events, 24 case studies and weekly news analysis. Start with a business situation below instead of reading the archive from top to bottom. Every article carries a VI/EN toggle in the navigation.
Choose by the decision you need to make
Four short paths from a question to a practical next step.
Estimate the budget
Compare likely cost with measurable value before requesting a proposal.
Prepare to implement
Define the data, scope and measurement needed to move beyond a demo.
Find customer drop-offs
Check the handoff between AI Search, website, messaging and the physical touchpoint.
Where should you start? The 3 pillars
The three concepts everything else on this site builds on.
AI agents in practice
What agents actually do for a business - and how to build on solid ground.
- Zalo OA API: Send a Message by Phone Number (2026)Aug 2026
- Chatbot development pricing 2026: website, Zalo OA and FacebookAug 2026
- Measuring AI agent ROI: the formula and 6 metrics to trackAug 2026
- Data security for AI agents: an 8-step checklist under Decree 13Aug 2026
- AI Agents for hotels & homestays: direct bookings, guest care 24/7Aug 2026
- AI Agents for gyms & yoga studios: retain members 24/7Jul 2026
- What can an AI Agent do? 9 jobs beyond the Q&A chatbotJul 2026
- How much does an AI agent cost? Price ranges for VietnamJul 2026
- How to implement an AI agent: 5 steps, 2-4 weeksJul 2026
- 7 AI agent mistakes that sink projects - and their fixesJul 2026
- Chatbot vs AI Agent: which one does your business need?Jul 2026
- Why Vietnamese AI agents need custom training to sellJul 2026
- AI Agent for education centers: from inquiry to enrollmentJul 2026
- AI Agent for restaurants: bookings, orders & 24/7 careJul 2026
- AI Agent for spas & beauty salons: 24/7 booking & adviceJul 2026
- AI Agent for dental clinics: booking, reminders, 24/7Jul 2026
- AI Agent for real estate: advice, filtering, 24/7 bookingJul 2026
- Zalo OA Chatbot for Business: Plans, Fees & Setup 2026Jul 2026
- AI Agent for online shops: advice, orders & 24/7 careJul 2026
- n8n vs Make: which platform for AI Agent automation?Jul 2026
- How to build a CRM with AI Agents: no per-seat feesJul 2026
- How to build a website with AI Agents in a weekJul 2026
- Data is the foundation of AI Agents - what SMBs need to prepareJul 2026
- Brand voice for AI Agents: keep your voice when AI speaksJul 2026
GEO: getting cited by AI search
The techniques this very site uses to score 100/100 on its own GEO audit.
- Google is not indexing your pages: 6 causes and fixesAug 2026
- Service pages AI recommends: optimize to get pickedJul 2026
- 7 bilingual website translation mistakes that lose customersJul 2026
- Internal linking for small sites: a 3 tier structureJul 2026
- Keyword research in the AI era: volume to questionsJul 2026
- Reading Google Search Console: 4 Weekly ReportsAug 2026
- Core Web Vitals: what to fix first for real gainsJul 2026
- Search intent in the AI era: how people ask nowJul 2026
- Website localisation: hreflang done rightJul 2026
- GEO vs SEO: where should your budget go first?Jul 2026
- Does ChatGPT mention your brand? How to check - 5 methodsJul 2026
- How to optimize your site for ChatGPT and PerplexityJul 2026
- What are AI Overviews? The box that eats your clicksJul 2026
- Optimize for AI Overviews: keep traffic when AI answers firstJul 2026
- GEO for Gemini: why your Google SEO is the ticket inJul 2026
- What is llms.txt? How to create the file AI reads firstJul 2026
- Cloudflare blocks AI crawlers: is your website affected?Jul 2026
- How to write FAQs that ChatGPT and AI Overviews will citeJul 2026
- Google Business Profile in the AI era: 8 tasks for local shopsJul 2026
- Schema markup for AI: FAQ, Article, OrganizationJul 2026
- AI Overviews in Vietnam - what changes for SEO and business?Jul 2026
Phygital: physical experiences, digital layer
Where offline touchpoints and online data feed each other.
- In-store digital signage: what to show, where to place itJul 2026
- Store lighting and air: comfortable customers stay longerJul 2026
- Game mechanics in phygital retail and live sellingJul 2026
- Shop feng shui: entrance, checkout and lightingJul 2026
- Phygital for coffee shops: 7 touchpoints that bring guests backJul 2026
- Phygital experience: 7 real-world examples from VietnamJul 2026
- Retail space design in the AI era: phygital principlesJul 2026
- QR codes in your store: 7 digital touchpoints that workJul 2026
- Phygital vs O2O vs omnichannel: which level are you at?Jul 2026
- Phygital + AI Agents: personalize every customerJul 2026
- 7 phygital formats Vietnamese businesses are adopting with AIJul 2026
Brand & events
Practical guides with real price ranges from the Vietnamese market.
- Zalo Ads for small businesses: how to startAug 2026
- Store grand opening: the 30-day checklistJul 2026
- Brand voice for Zalo OA chatbots: staying consistentAug 2026
- Micro-copy: Small Lines That Carry Your Brand VoiceJul 2026
- UTM Tracking for SMEs: Know Where Orders Come FromAug 2026
- Your first SME ad budget: how to split it without wasteJul 2026
- Cafe and restaurant fit out: structural limitsJul 2026
- Outdoor Stages in Rainy Season: Electrical, Wind SafetyAug 2026
- LED screen rigging: loads, truss and safetyJul 2026
- Live selling script: a framework for 60-120 minute showsJul 2026
- Tone of voice by situation: lines for 5 hard casesJul 2026
- Measuring ad performance: metrics that actually matterJul 2026
- Brand guidelines for SMEs: the 7 essentials in 10 pagesJul 2026
- Coca-Cola's AI Christmas ad backlash: the lessonsJul 2026
- Brand rebirth in the AI era: when and how to do itJul 2026
- Rebranding checklist for SMEs: 12 steps, no lost customersJul 2026
- Why big brands U-turned after minimalist logo changesJul 2026
- 6 Vietnamese entrepreneurs who built empires from zeroJul 2026
- Corporate event checklist: 32 items across 4 phasesJul 2026
- Event sound and lighting rental: 2026 prices and 7 checksJul 2026
- Booking a singer for your event: 2026 prices and 5 stepsJul 2026
- LED screen rental for events in HCMC: 2026 price guideJul 2026
AI & retail news, analyzed
What just happened in AI and retail - and what it means for a Vietnamese business.
- Deloitte: 42% run AI agents, only 15% scale themAug 2026
- Vietnam lists 46 high-risk AI systems, effective Aug 15Aug 2026
- ChatGPT free tier drops message limits: what businesses should doAug 2026
- Google's AI now calls stores to check stock: how to prepareAug 2026
- Vietnam leads the world on AI use, not on proving its ROIAug 2026
- 54% of firms have had an AI agent incident, most share keysAug 2026
- Gartner: AI agents to outnumber sellers 10 to 1 by 2028Aug 2026
- Asia's clouds go agent-native: 15 agents handle 85% supportJul 2026
- OpenAI launches Presence: AI agents with engineers attachedJul 2026
- Gartner: $234B in SaaS spending at risk from AI agentsJul 2026
- MCP becomes an open standard: AI agents lose vendor lock-inJul 2026
- Gartner: 40% of enterprise apps to embed AI agents by 2026Jul 2026
- Deloitte: AI agents will shop on behalf of Asian consumersJul 2026
- AI Overviews eat clicks: only 1% click the cited linksJul 2026
- Google's Gemini Enterprise: managing a fleet of AI agentsJul 2026
- Southeast Asia bets on experiential retail, AI as the glueJul 2026
- PwC and OpenAI turn the contact center into an AI agentJul 2026
- Salesforce puts stores inside ChatGPT: Agentforce CommerceJul 2026
- A record $510B in startup funding: AI swallows nearly allJul 2026
Case studies: 24 brands, wins and warnings
What worked, what backfired, and the lesson a small business can borrow.
- Katinat, Phê La, Cộng Cà Phê: three playbooks from VietnamJul 2026
- Nike's winning phygital ecosystemJul 2026
- IKEA and AR: the virtual fitting room for homesJul 2026
- Highlands Coffee: one color, same bean, 700 storesJul 2026
- Vinamilk: the 47-year-first rebrand that workedJul 2026
- Biti's Hunter: waking a sleeping brand with one emotionJul 2026
- Viettel: the identity followed the strategyJul 2026
- The Gap logo: a rebrand undone in six daysJul 2026
- Tropicana: erase the shelf signal, lose the saleJul 2026
- Starbucks: the flywheel that turns coffee into dataJul 2026
- Domino's: the tech company that happens to sell pizzaJul 2026
- Sephora: removing the one fear that stalls beauty buyingJul 2026
- Burberry: discipline first, then the digital betJul 2026
- Starbucks Korea: the calendar check that never happenedJul 2026
- Apple Store - selling experience, not devicesJul 2026
- Amazon Go and the limits of phygital techJul 2026
- LEGO - from near bankruptcy to revivalJul 2026
- Duolingo and the "AI-first" crisisJul 2026
- Klarna's U-turn after replacing 700 people with AIJul 2026
- Chegg and the Google AI Overviews shockJul 2026
- Spotify Wrapped and personalized data marketingJul 2026
- Jaguar and the "Copy Nothing" gambleJul 2026
- Coca-Cola's New Coke 1985 and the great U-turnJul 2026
- MoMo & ZaloPay - the digital payment race in VietnamJul 2026
Frequently asked questions
Does every Vietnamese article have an English version?
Yes. Every published Vietnamese article has an English counterpart - 124 article pairs in total, including the three pillar guides, 24 case studies and weekly news analysis. Every bilingual pair carries a VI/EN toggle in the top navigation.
Who writes these articles?
The Chạm AI Agency team in Ho Chi Minh City, Vietnam - practitioners who build AI agents, phygital activations and GEO-optimized websites for small and mid-sized businesses. Each article names its author with a linked profile; frameworks come from client work in 2024-2026, not from theory.
Where should a first-time reader start?
Start with the three pillars: What is an AI Agent, What is phygital, and What is GEO. Then pick the track that matches your goal - the AI Agent articles if you want to automate sales and support, the GEO articles if you want to be cited by ChatGPT and Google AI Overviews, or the case studies if you learn best from real brands.