Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
tieu sach » chieu sach, dien sach, te sach
doanh cua » doanh luan
dang cong » dung cong
bang cong » bang song, hang cong, dung cong
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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: theo tieu sach - hanh doanh cua ((dang cong) OR (bang cong)) tac ((toan cau) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh doanh cua ((dang cong) or (bang cong)) tac ((toan cau) or (toan tap))*.