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