Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
cong dan » cong san, huong dan, cong dong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - canh tranh van nhung ((cong dan) or (((cong tan) or (cong tac)))) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh tranh van nhung ((cong dan) OR (((cong tan) OR (cong tac)))) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh van nhung ((cong dan) or (((cong tan) or (cong tac)))) toan cau*.