Perhaps you should try some spelling variations:
chao chieu » cao hieu, chao chu, ho chieu
chieu sach » chinh sach, chiet tach, chieu sang
thang hang » thanh hang, thanh hoang, thanh thang
nhung cong » dung cong, thong cong, hang cong
hang hang » nang hang, cang thang, hung thang
cua nhung » va nhung
cong san » cong tac
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chieu sach - ((hang hang) or (thang hang)) cua nhung cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chieu sach - ((hang hang) OR (thang hang)) cua nhung cong san van ban*.