Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
cvan dau » phan dau, van dao, va dau
van dau » van dao, phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - canh tranh va nhung ((cong dan) or (cong san)) ((cvan dau) or (van dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh tranh va nhung ((cong dan) OR (cong san)) ((cvan dau) OR (van dau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh tranh va nhung ((cong dan) or (cong san)) ((cvan dau) or (van dau))*.