Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tang luan » dung luan
khoan cam » khoa cam, khoan va, phan cam
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, phan cac, phan cau

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