Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu
thi chieu » thi chien, thi hieu, thi hien
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((theo chieu) OR (thi chieu))) OR (theo tieu)) tinh - canh tranh va dung cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((theo chieu) OR (thi chieu))) or (theo tieu)) tinh - canh tranh va dung cong dan than cap~".
• Adding a wildcard symbol may retrieve word variants: ((((theo chieu) OR (thi chieu))) or (theo tieu)) tinh - canh tranh va dung cong dan than cap*.