Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hung cong » nhung cong, hung cuong, phung cong
anh tang » anh bang, anh dang, anh nang
tang van » dang van, hoang van, trong van
van hung » van dung, manh hung, van duong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - anh tang van hung cong tan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh tang van hung cong tan ((than cau) OR (phan cau))*.