Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh chau » thanh cha, thanh cham, thanh chu
tinh bang » tinh sang, tinh lang, tinh quang
dung cong » dung trong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
bang va » hang va, ban va, trang va
va dung » van dung, va duong, vat dung

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

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