Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu sach » chinh sach, chiet tach, chieu sang
doanh quan » doanh quang, doanh luan, doan quan
quan trong » gian trong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tac » cong ty
tac gian » tac gia, tac giai, tac giam
gian dan » gian lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - hanh doanh quan trong cong tac gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - hanh doanh quan trong cong tac gian dan*.