Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
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: ((theo chieu) or (theo tieu)) tinh - canh tranh va dung cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) tinh - canh tranh va dung cong dan khan cap.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) tinh - canh tranh va dung cong dan khan cap*.