Perhaps you should try some spelling variations:
thanh trung » thanh tung
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, trung cap
cua thong » cua thuong, cua khong, cua tong
thanh cac » thanh bac, thanh ca, tranh cac
cong dan » cong san, cong tan, huong dan
hanh cac » hang cac, hanh cat, nhanh cay

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