Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
trong san » trong cac, cong san, trong ca
hanh ban » thanh ban, hang ban, hanh san
cua dung » cua dang, cua dong, qua dung
dong san » cong san, dong bang, dong von
toan ban » van ban
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ban cua dung ((trong san) OR (dong san)) ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh ban cua dung ((trong san) OR (dong san)) ((toan tap) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ban cua dung ((trong san) OR (dong san)) ((toan tap) or (toan ban))*.