Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
hieu sach » chieu sach, hieu cach, dien sach
trung cua » truong cua, trung tuan, trung cap
dong cong » duong cong, dung cong, dang cong
thanh cac » hanh cac, thanh bac, thanh ca
doc hieu » toc thieu, hoc thieu, hoc hien
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - manh trung cua dong cong dan ((than cao) or (((than cap) or (thanh cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - manh trung cua dong cong dan ((than cao) OR (((than cap) OR (thanh cac))))*.