Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
va duong » van duong, va tuong, va huong
dan than » dan chan, ban than, van than
va dung » van dung, vat dung, va ung

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

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