Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
san thanh » ban thanh, van thanh, son thanh
thanh cau » thanh chau, thanh mau, nhanh cau
cong san » cong tac
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 san thanh 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 san thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung ((ap dung) or (xay dung)) cong san thanh cau*.