Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
hang hang » nang hang, cang thang, hung thang
cong san » cong tac
tuan tap » toan tap, tuan tai, tuyen tap
quan tai » quan tri, quang tri, quan li

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) or (hieu lang)) - hang hang va nhung cong san ((tuan tap) or (quan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hieu lang)) - hang hang va nhung cong san ((tuan tap) OR (quan tai)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hieu lang)) - hang hang va nhung cong san ((tuan tap) or (quan tai))*.