Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
tang luan » dung luan
dung cong » dung trong
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (nhieu tang)) - anh ((mang cua) or (tang luan)) dung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (nhieu tang)) - anh ((mang cua) OR (tang luan)) dung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (nhieu tang)) - anh ((mang cua) or (tang luan)) dung cong dan than ban*.