Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
cong van » cong vang, song van, cong tan
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, nho hieu
ap 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: ho hieu lang - thanh trung ((ap dung) or (xay dung)) ((cong van) or (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung ((ap dung) OR (xay dung)) ((cong van) OR (cong san)) phan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung ((ap dung) or (xay dung)) ((cong van) or (cong san)) phan cau*.