Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
dung cua » dung luan, dung cho
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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 - thanh dung cua nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh dung cua nhung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh dung cua nhung ((cong dan) or (cong san)) toan cau*.