Perhaps you should try some spelling variations:
quan trong » gian trong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, mot chieu
tan doanh » toan doanh, van doanh, san doanh
doanh cao » doanh co, doanh bao, doanh cho
hanh ban » thanh ban, hanh san, hanh han
hang ban » hang luan, hang va, hang tai
cong tan » cong tac, cong san, cong thanh

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 - ((hanh ban) or (hang ban)) quan trong cong tan doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh ban) OR (hang ban)) quan trong cong tan doanh cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh ban) or (hang ban)) quan trong cong tan doanh cao*.