Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
tang manh » tung manh, dang manh, tang hanh
manh hung » anh huong
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - anh tang manh hung ((cong san) OR (cong tac)) ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - anh tang manh hung ((cong san) OR (cong tac)) ((than cap) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - anh tang manh hung ((cong san) OR (cong tac)) ((than cap) or (khan cap))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - anh tang manh hung ((cong san) OR (cong tac)) ((than cap) or (khan cap))*.