Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu sach » chieu sach, dien sach, te sach
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - thanh trung cua nhung ((cong dan) or (cong san)) ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh trung cua nhung ((cong dan) OR (cong san)) ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh trung cua nhung ((cong dan) or (cong san)) ((than cap) or (khan cap))*.