Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tran thanh » ban thanh, van thanh, quan thanh
thanh chau » thanh cha, thanh cham, thanh chu
doi chieu » doc hieu, doi chi, ho chieu
tran tuan » tran xuan, tran quang, tranh luan
dang cong » dung cong
thanh cau » thanh mau, nhanh cau, thanh ca
cong san » cong tac

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 ((tran tuan) OR (tran thanh)) dang cong san ((thanh cau) or (thanh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((tran tuan) OR (tran thanh)) dang cong san ((thanh cau) OR (thanh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh ((tran tuan) OR (tran thanh)) dang cong san ((thanh cau) or (thanh chau))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((tran tuan) OR (tran thanh)) dang cong san ((thanh cau) or (thanh chau))*.