Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
bang cong » dang cong, bang song, hang cong
cong cua » cong cu, dong cua, huong cua
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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 sach) OR (chiet tach))) OR (chieu tinh)) - thanh cong cua bang cong san toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sach) OR (chiet tach))) or (chieu tinh)) - thanh cong cua bang cong san toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sach) OR (chiet tach))) or (chieu tinh)) - thanh cong cua bang cong san toan cau*.