Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung ha » trung hoc, trung tam, trung cap
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac
ha dong » hoat dong, van dong

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 - thanh trung ha dong ((cong ban) OR (cong san)) ((than cau) OR (than cap))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung ha dong ((cong ban) or (cong san)) ((than cau) or (than cap))*.