Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trong van » trong cac
chu sach » cau sach, thu sach, chuc hach
anh dung » anh dong, anh huong, sach dung
dung cua » dung luan, dung cho
cua dong » chua dong, cua cong, cua dang
cong san » cong tac
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: cho ((chu sach) OR (chieu sach)) - anh dung cua dong ((cong san) or (trong van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chu sach) OR (chieu sach)) - anh dung cua dong ((cong san) OR (trong van)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chu sach) OR (chieu sach)) - anh dung cua dong ((cong san) or (trong van)) toan cao".
• Adding a wildcard symbol may retrieve word variants: cho ((chu sach) OR (chieu sach)) - anh dung cua dong ((cong san) or (trong van)) toan cao*.