Perhaps you should try some spelling variations:
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu
co hieu » cao hieu, doc hieu
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: ((ho lieu) OR (co hieu)) tinh - canh tranh va dung cong dan ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (co hieu)) tinh - canh tranh va dung cong dan ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (co hieu)) tinh - canh tranh va dung cong dan ((toan cau) OR (toan ban))*.