Perhaps you should try some spelling variations:
hanh doanh » chinh doanh, doanh doanh, kinh doanh
hang doanh » nhung doanh, van doanh, dung doanh
luan trong » quan trong, luat trong, luan tuong
tieu sach » chieu sach, dien sach, te sach
cong ban » cong bang, cong san, cong tan
ban toan » bai toan, ban than, van toan
toan cau » toan cao, toan ban, toan tap

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) OR (hang doanh)) luan trong cong ban toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh doanh) or (hang doanh)) luan trong cong ban toan cau*.