Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
nhung dong » nhung don, nhung cong, nhung dung
dong doanh » dung doanh, trong doanh, doanh doanh
doanh phan » doanh nhan, doan phan, doanh thanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((dieu hanh) or (hieu nganh)) - canh tranh cua nhung dong doanh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (hieu nganh)) - canh tranh cua nhung dong doanh phan cau.
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (hieu nganh)) - canh tranh cua nhung dong doanh phan cau*.