Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh hoan » doanh doanh, doanh khoa, doanh nhan
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
hoan cua » hoa cua, toan cua, han cua
cong dan » cong san, cong tan, huong dan
phan dau » hang dau

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 cua nhung cong dan ((phan dau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - doanh hoan cua nhung cong dan ((phan dau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - doanh hoan cua nhung cong dan ((phan dau) or (phan tu))*.