Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
cong tan » cong tac, cong san, cong thanh
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: hoc thieu sach - hanh dung cua nhung ((cong tan) OR (cong ty)) toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh dung cua nhung ((cong tan) or (cong ty)) toan ban*.