Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh doanh » chinh doanh, doanh doanh, kinh doanh
hang doanh » nhung doanh, van doanh, dung doanh
hoc hieu » hoc thieu, hoc hien, doc hieu
luan ung » luan hung, luon ung, luan chung
ung cong » dung cong, luong cong, duong cong
van gian » van giang, van giao, van giam

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 nganh - ((hanh doanh) or (hang doanh)) luan ung cong ((van gian) OR (dan gian)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - ((hanh doanh) OR (hang doanh)) luan ung cong ((van gian) OR (dan gian)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - ((hanh doanh) or (hang doanh)) luan ung cong ((van gian) OR (dan gian)) cau*".