Perhaps you should try some spelling variations:
doanh luan » doanh nhan
canh doanh » hanh doanh, chinh doanh, doanh doanh
tiep danh » tieu danh, thien danh, tiep can
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
ban toan » bai toan, ban than, bao toan
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tiep danh) or (dieu hanh)) - canh doanh luan dang cong ((ban toan) or (van toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tiep danh) OR (dieu hanh)) - canh doanh luan dang cong ((ban toan) OR (van toan)) ban.
• Adding a wildcard symbol may retrieve word variants: theo ((tiep danh) or (dieu hanh)) - canh doanh luan dang cong ((ban toan) or (van toan)) ban*.