3000 câu giao tiếp tiếng Trung is an Android application developed by AmyTech. It is a free educational tool that is designed to help users learn Chinese. The program offers a combination of traditional Chinese characters with PinYin phonetics, making it easier for Vietnamese speakers to learn the language.

The application has an extensive collection of 3000 phrases in Chinese that are commonly used in daily conversation. The phrases are divided into different categories such as greetings, shopping, transportation, and many more. The program also includes audio recordings of each phrase, which is a great way to practice pronunciation. Overall, 3000 câu giao tiếp tiếng Trung is a great tool for anyone who is interested in learning Chinese.