Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh doanh » chinh doanh, doanh doanh, kinh doanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
doi chieu » doc hieu, doi chi, ho chieu
trong van » trong cac
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((canh doanh) OR (hanh doanh)) ((cua nhung) OR (va nhung)) trong van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((canh doanh) or (hanh doanh)) ((cua nhung) OR (va nhung)) trong van toan ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((canh doanh) or (hanh doanh)) ((cua nhung) OR (va nhung)) trong van toan ban*.