Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
bien tinh » bi tinh, yen tinh, diep tinh
trinh cua » tinh cua, trinh luat, trinh quan
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan ban » van ban
ho bien » pho bien, hoa bien, so bien

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 bien tinh - hanh trinh cua cong ((cong tan) OR (cong san)) toan ban~.
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - hanh trinh cua cong ((cong tan) or (cong san)) toan ban*.