Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
cua thuong » cua truong, ca thuong, cua huong
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu lang » chieu sang, hieu quang, nhieu tang
cong san » cong tac
ho hieu » ho chieu, hoi hieu, nho hieu
san van » tan van, luan van, tran van

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: ho hieu lang - hanh doanh ((cua thuong) OR (cua phuong)) cong san van ban~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh doanh ((cua thuong) or (cua phuong)) cong san van ban*.