CVEDict is an Android app developed by mocvien.com that allows you to look up words in Vietnamese and Chinese. The app has a basic dictionary search feature where you can enter a word to get its definition. You can also use the handwriting feature to look up Chinese characters.

In addition to the basic search, the app offers an advanced search that allows you to use the ? and * symbols to search for words. For example, if you want to find a word that contains the Chinese characters 行 and 機, you can enter *行機. The app also allows you to search for words within the dictionary content by highlighting the word and selecting "look up".

CVEDict also includes audio features that allow you to listen to individual words or entire paragraphs. You can also browse the web within the app, highlighting words or phrases and selecting "look up". The app also lets you mark words and phrases, as well as access your search history.

Overall, CVEDict is a useful tool for anyone looking to learn Vietnamese or Chinese, and its advanced search features make it a powerful tool for language learners.