Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
huong cua » dung cua
cua nhung » va nhung
trong van » trong cac
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
luan ban » luan van, luan san, luan han

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - anh huong cua nhung ((cong van) or (trong van)) luan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - anh huong cua nhung ((cong van) OR (trong van)) luan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - anh huong cua nhung ((cong van) or (trong van)) luan ban*.