Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hanh cong » thanh cong, hang cong, hanh dong
dang cong » dung cong
hanh cham » thanh pham, hanh lam, hanh nam
van hanh » van thanh, ban hanh, van anh
va tinh » may tinh
dat » data

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

• Performing a fuzzy search may retrieve terms with similar spellings: dat va tinh - hanh doanh luan ((hanh cong) or (dang cong)) van hanh cham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dat va tinh - hanh doanh luan ((hanh cong) OR (dang cong)) van hanh cham*.