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
than cau » toan cau, phan cau, than cap
toan tap » toan ban
va dung » van dung, va duong, vat dung

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 dung ((cong dan) or (cong san)) ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh tranh va dung ((cong dan) OR (cong san)) ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh tranh va dung ((cong dan) or (cong san)) ((than cau) or (toan tap))*.