Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
dung chung » dung cong, dung ung, dung trung
doi chieu » doc hieu, doi chi, mot chieu
luan dung » lan dung, luan dong, luan hung
ho chieu » theo chieu, hoc thieu, mot chieu
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) tinh - hanh doanh luan dung chung ((van toan) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) tinh - hanh doanh luan dung chung ((van toan) OR (van tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) tinh - hanh doanh luan dung chung ((van toan) or (van tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) tinh - hanh doanh luan dung chung ((van toan) or (van tuan)) cao*.