Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chieu sang)) - cach mang ((cua dung) or (cua dang)) cong doan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu sang)) - cach mang ((cua dung) OR (cua dang)) cong doan phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chieu sang)) - cach mang ((cua dung) or (cua dang)) cong doan phan tap".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chieu sang)) - cach mang ((cua dung) or (cua dang)) cong doan phan tap*.