Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
doanh luan » doanh nhan
thong cong » tong cong, thong thong, phong chong
hieu lang » chieu sang, hieu quang, nhieu tang
doan phan » doanh phan, toan phan, dan phan
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - chinh doanh luan ((thong cong) or (trong cong)) doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - chinh doanh luan ((thong cong) OR (trong cong)) doan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - chinh doanh luan ((thong cong) or (trong cong)) doan phan cau*.