Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
anh dung » anh dong, anh huong, sach dung
dung cua » dung luan, dung cho
cua dang » cua cong, cua ban
cong san » cong tac
thai cac » thoai cac, tai cac, khai cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - anh dung cua dang ((huong dan) or (cong san)) thai cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - anh dung cua dang ((huong dan) OR (cong san)) thai cac.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - anh dung cua dang ((huong dan) or (cong san)) thai cac*.