Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh manh » hanh mang, lanh manh, hoang manh
trong dan » trong dang, trong san, trong tan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
manh va » hanh va, anh va, minh va
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (dieu hanh)) - hanh manh va dung trong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (dieu hanh)) - hanh manh va dung trong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (dieu hanh)) - hanh manh va dung trong dan toan cao*.