Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
tang luan » dung luan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
thanh lap » thanh san, phan lap, thanh hai
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
khan cap » khan ap, than cap, khoan cam

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) or (cuu tinh)) - anh tang luan hung cong tac ((khan cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu tinh) OR (cuu tinh)) - anh tang luan hung cong tac ((khan cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: doi ((chieu tinh) or (cuu tinh)) - anh tang luan hung cong tac ((khan cap) or (thanh lap))*.