Perhaps you should try some spelling variations:
hung thang » cang thang
hoa chinh » hoan chinh, hoa hinh, hoc chinh
hung tran » huong tran, quang tran, dung tren
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
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: hoa chinh sach - ((hung thang) OR (hung tran)) va dung cong tan ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoa chinh sach - ((hung thang) or (hung tran)) va dung cong tan ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: hoa chinh sach - ((hung thang) or (hung tran)) va dung cong tan ((toan cau) OR (toan cao))*.