Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tuong cua » truong cua, huong cua, thong cua
dong cong » duong cong, dung cong, dang cong
chinh cau » chinh chau, chinh ca, chinh can
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan

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