Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
cau sach » hau sach, rau sach, khau sach
cao sach » co sach, ao sach, lao sach
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap

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

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