Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hien manh » hien hanh, tien manh, hieu manh
luan hang » luan nang, luan han, luan hung
cong van » cong vang, cong san, cong va
cong tan » cong tac, cong san, cong thanh
song van » hoang van, trong van, duong van
ban ban » ban banh, van ban, can 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 hien manh - canh doanh luan hang ((((cong van) or (cong tan))) or (song van)) ban ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - canh doanh luan hang ((((cong van) OR (cong tan))) OR (song van)) ban ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - canh doanh luan hang ((((cong van) or (cong tan))) or (song van)) ban ban*.