Perhaps you should try some spelling variations:
hieu nganh » hiem ngan, nghiep nganh
vien nganh » vien thanh
hieu manh » chieu xanh, dieu hanh, hien hanh
dang luan » dung luan, tang luan, hang luan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu manh) or (((hieu nganh) OR (vien nganh)))) - anh dang luan hung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (((hieu nganh) OR (vien nganh)))) - anh dang luan hung cong san than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) or (((hieu nganh) OR (vien nganh)))) - anh dang luan hung cong san than cau*".