Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
toc chieu » toc thieu, doc hieu, hoc thieu
dung cong » dung trong
tranh su » trinh su, trang su, tranh cua
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu tinh - canh tranh su dung cong tan ((than cap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu tinh - canh tranh su dung cong tan ((than cap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: toc chieu tinh - canh tranh su dung cong tan ((than cap) or (phan dau))*.