Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than tap » toan tap, han tap, phan 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 ((chiet tach) or (cuu tinh)) - hanh dung cua nhung ((cong dan) or (cong san)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (cuu tinh)) - hanh dung cua nhung ((cong dan) OR (cong san)) than tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (cuu tinh)) - hanh dung cua nhung ((cong dan) or (cong san)) than tap*.