Perhaps you should try some spelling variations:
tranh viet » tran viet, trinh viet, trang viet
hoc chinh » hoan chinh, hoc sinh, hoc kinh
viet dung » viet hung, viet huong, viet trung
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
toan cau » toan tap, toan tai
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - canh tranh viet dung cong dan ((((toan cau) or (toan cao))) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - canh tranh viet dung cong dan ((((toan cau) OR (toan cao))) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - canh tranh viet dung cong dan ((((toan cau) or (toan cao))) or (toan ban))*.