Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh dung » thanh dung, anh dung, hanh dong
trong dan » trong dang, trong san, trong tan
chu sach » cau sach, thu sach, chuc hach
dung cua » dung luan, dung cho
cua dung » cua dang, cua dong, qua dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 ((chu sach) OR (chieu sach)) - hanh dung cua dung trong dan ((toan cau) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) or (chieu sach)) - hanh dung cua dung trong dan ((toan cau) or (toan ban))*.