Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
canh hoang » anh hoang, thanh hoang, ctnhh hoang
hoang van » hang va
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong san » cong tac
phan dau » phan tu, hang dau
phan cac » nhan cach, phan lap, phan van

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 (chieu sang)) - canh hoang van dung cong san ((phan dau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh hoang van dung cong san ((phan dau) OR (phan cac))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - canh hoang van dung cong san ((phan dau) or (phan cac))*".