Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu sach » chieu sach, te sach, viet sach
dien sach » dien anh
trung cua » truong cua, trung tuan, trung cap
cua trong » cua truong, cua trung, qua trong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
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 ((tieu sach) or (dien sach)) - thanh trung cua trong cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (dien sach)) - thanh trung cua trong cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) or (dien sach)) - thanh trung cua trong cong tan than cap*.