Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - canh doanh luan ((hang cong) OR (dung cong)) ((dan than) OR (van tuan)) cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - canh doanh luan ((hang cong) or (dung cong)) ((dan than) or (van tuan)) cau*.