Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
luan dong » luan cong, luan nong, luan luong
quan dong » quang dong, quan long, quan hoang
hoc hieu » hoc thieu, hoc hien, doc hieu
hieu cac » hieu luc, hieu va, hieu van
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cac - chinh doanh ((luan dong) or (quan dong)) cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cac - chinh doanh ((luan dong) OR (quan dong)) cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cac - chinh doanh ((luan dong) or (quan dong)) cong dan than ban*.