Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
ban thanh » ban hanh, ban hang
canh ban » can ban, canh dan, canh van
dan than » dan chan, ban than, van than
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chinh sach)) - canh ban cua nhung cong ((dan than) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - canh ban cua nhung cong ((dan than) OR (ban thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chinh sach)) - canh ban cua nhung cong ((dan than) or (ban thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chinh sach)) - canh ban cua nhung cong ((dan than) or (ban thanh)) cau*.