Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh quan » doanh quang, doanh luan, doan quan
quan trong » gian trong
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 ((dieu hanh) or (chieu sang)) - hanh doanh quan trong cong tac gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (chieu sang)) - hanh doanh quan trong cong tac gian dan.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (chieu sang)) - hanh doanh quan trong cong tac gian dan*.