Perhaps you should try some spelling variations:
thinh sach » chinh sach, tinh sach, sinh sach
trung tuan » trung thanh, trung tam, tran tuan
trung cap » truong cao, trung tam
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
tien » tieng, bien, vien

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

• Performing a fuzzy search may retrieve terms with similar spellings: tien thinh sach - thanh ((trung tuan) or (trung cap)) hang cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien thinh sach - thanh ((trung tuan) OR (trung cap)) hang cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: tien thinh sach - thanh ((trung tuan) or (trung cap)) hang cong tan than cap*.