Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dung » thanh dung, anh dung, hanh dong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan

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)) - hanh dung luan chung cong doan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hieu lang)) - hanh dung luan chung cong doan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hieu lang)) - hanh dung luan chung cong doan phan tu*.