Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh tan » thanh toan, thanh tuan, thanh san
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
tan van » tran van, tang van, luan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien thanh)) - thanh tan van ((nhung cong) OR (thong cong)) tan than cap~.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien thanh)) - thanh tan van ((nhung cong) or (thong cong)) tan than cap*.