Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
theo cau » theo chu, theo cap, theo dau
cau sach » cao sach, hau sach, rau sach
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh 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 cau sach - thanh trung cua dung cong dan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cau sach - thanh trung cua dung cong dan ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: theo cau sach - thanh trung cua dung cong dan ((than cau) or (than cap))*.