Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh dung » thanh dung, anh dung, hanh dong
cong cong » cong dong, trong cong, dung cong
dung cua » dung luan, dung cho
cong san » cong tac
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.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh dung cua cong cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh dung cua cong cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh dung cua cong cong san ((toan cau) or (toan ban))*.