Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
tung cua » tuong cua, dung cua, tang cua
cong dan » cong san, cong tan, huong dan
can cau » van cau, ca cau, cac cau
ban cau » bang cau, ban can, van cau

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