Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong san » cong tac
chat cau » chat cam, chat cao, chat va
chat bao » chat ban, thuat bao, nhat ban

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 tranh qua dung cong san ((chat cau) or (chat bao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh tranh qua dung cong san ((chat cau) OR (chat bao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - canh tranh qua dung cong san ((chat cau) or (chat bao))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chieu sang)) - canh tranh qua dung cong san ((chat cau) or (chat bao))*.