Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
nhung don » nhung van, nhung bo
dung cong » dung trong
doan phan » doanh phan, toan phan, doanh nhan
hoc hieu » hoc thieu, hoc hien, doc hieu
tranh va » tranh van, trang va, trinh va
dan phan » dan chan, van phan, dam phan

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 manh - canh tranh va ((nhung don) or (dung cong)) ((doan phan) or (dan phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh va ((nhung don) OR (dung cong)) ((doan phan) OR (dan phan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh va ((nhung don) or (dung cong)) ((doan phan) or (dan phan)) cau*.