Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu manh » chieu xanh, hieu nganh, dieu hanh
van thanh » ban thanh, van tuan
hoc hieu » hoc thieu, hoc hien, doc hieu
cap dung » cao dung, chan dung, cach dung
dan toan » van toan, dan than, manh toan
ap dung » xay dung, van dung

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 trung ((cap dung) or (ap dung)) cong ((dan toan) or (van thanh)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh trung ((cap dung) OR (ap dung)) cong ((dan toan) OR (van thanh)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh trung ((cap dung) or (ap dung)) cong ((dan toan) or (van thanh)) ban*.