Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung tam, tran tuan, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
cong tan » cong tac, cong san, cong thanh
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: doi chieu sach - thanh ((trung tuan) or (trung thanh)) dung cong tan ((than cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((trung tuan) OR (trung thanh)) dung cong tan ((than cau) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((trung tuan) or (trung thanh)) dung cong tan ((than cau) or (thanh cac))*.