Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhan thong » nhan trong, nha thong, nhan khong
doi chieu » doc hieu, doi chi, mot chieu
cong dang » cong dan, cong dung, cong danh
thanh cha » thanh ha, thanh nha, thanh phan

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 doanh nhan thong ((cong dang) or (cong dong)) thanh cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh doanh nhan thong ((cong dang) OR (cong dong)) thanh cha*.