Perhaps you should try some spelling variations:
dung cong » dung trong
tranh ha » thanh ha, trang ha, trinh ha
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
hoi chu » hoi chuc
ha dung » hai dung, kha dung, nha dung
a chau » ha chau, lai chau, hat chau

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: ((hoi chu) OR (a chau)) tinh - canh tranh ha dung cong dan ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoi chu) or (a chau)) tinh - canh tranh ha dung cong dan ((toan cau) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ((hoi chu) or (a chau)) tinh - canh tranh ha dung cong dan ((toan cau) OR (toan tap))*.