Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cac phuong » cac truong
doi chieu » doc hieu, doi chi, ho chieu
tung cac » dung cac, vung cac, cung cac
cong dan » cong san, cong tan, cong dong
toan ban » van ban

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 - thanh tung cac phuong ((cong dan) or (huong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung cac phuong ((cong dan) OR (huong dan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung cac phuong ((cong dan) or (huong dan)) toan ban*.