Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhiet nang » nhiet dong, viet nang, nhieu tang
cua nhung » va nhung
anh nang » ganh nang, anh bang, anh dang
nang cua » mang cua, hang cua, nang dua
cong san » cong tac
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 ((chieu sach) OR (nhiet nang)) - anh nang cua nhung ((huong dan) OR (cong san)) toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (nhiet nang)) - anh nang cua nhung ((huong dan) or (cong san)) toan ban*.