Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
nhung cong » dung cong, thong cong, nhung don
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

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