Perhaps you should try some spelling variations:
chieu sach » chieu sang, chieu xanh, hieu cach
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
tranh va » tranh van, trang va, trinh va
toan tap » toan ban
va dung » van dung, va duong, vat dung

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 (chinh sach))) or (chiet tach)) - canh tranh va dung cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sach) OR (chinh sach))) OR (chiet tach)) - canh tranh va dung cong manh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sach) or (chinh sach))) or (chiet tach)) - canh tranh va dung cong manh toan tap*.