Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong san » cong tac
giao cac » gian cac, giao duc, gia cam
giai cac » gian cac, giai ca, giai cao

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 ((trung cua) or (trung cap)) thong cong san ((giao cac) OR (giai cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((trung cua) OR (trung cap)) thong cong san ((giao cac) OR (giai cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh ((trung cua) or (trung cap)) thong cong san ((giao cac) OR (giai cac))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((trung cua) or (trung cap)) thong cong san ((giao cac) OR (giai cac))*.