Perhaps you should try some spelling variations:
doanh doan » doanh doanh, doanh hoan, doanh nhan
mon triet » minh triet, bo triet, mao triet
hang dong » hang nong, hang cong, hanh dong
dong danh » dong doanh, dong anh, dung danh
danh phan » doanh phan, danh nhan, danh phap
doan van » doan va, hoang van, luan van
van hang » van khang, van hoang, van thang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (mon triet)) tinh - doanh doan van hang dong danh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (mon triet)) tinh - doanh doan van hang dong danh phan tu*.