Perhaps you should try some spelling variations:
thanh nhung » thanh hung, hanh nhung, thanh chuong
tranh nhung » trinh nhung, tranh hang, tran hung
thanh tran » thanh trang, thanh toan, thanh tra
thieu xanh » chieu xanh, hieu manh, thien anh
tien anh » tieng anh, tien manh, dien anh
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (tien anh)) - thanh tran ((thanh nhung) OR (tranh nhung)) cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (tien anh)) - thanh tran ((thanh nhung) OR (tranh nhung)) cong san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (tien anh)) - thanh tran ((thanh nhung) OR (tranh nhung)) cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (tien anh)) - thanh tran ((thanh nhung) OR (tranh nhung)) cong san toan cao*.