Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hang doanh » hanh doanh, nhung doanh, van doanh
doi chieu » doc hieu, doi chi, ho chieu
hanh dong » anh dong, ha dong
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((doanh hoan) or (((hanh dong) or (hang doanh)))) luan hung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((doanh hoan) OR (((hanh dong) OR (hang doanh)))) luan hung cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((doanh hoan) or (((hanh dong) or (hang doanh)))) luan hung cong dan than cau*.