Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh doanh » hanh doanh, chinh doanh, doanh doanh
doc chieu » doc hieu, doi chieu, toc thieu
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
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: doc chieu sach - canh doanh cua ((hang cong) or (dung cong)) dan ((phan tu) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sach - canh doanh cua ((hang cong) OR (dung cong)) dan ((phan tu) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: doc chieu sach - canh doanh cua ((hang cong) or (dung cong)) dan ((phan tu) or (phan dau))*.