Perhaps you should try some spelling variations:
dong doanh » dung doanh, trong doanh, doanh doanh
doanh phan » doanh nhan, doan phan, doanh thanh
doi chieu » doc hieu, doi chi, mot chieu
hang dong » hang nong, hang cong, hanh dong
tranh va » tranh van, trang va, trinh va
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) tinh - canh tranh va hang dong doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) tinh - canh tranh va hang dong doanh phan tu.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) tinh - canh tranh va hang dong doanh phan tu*.