Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
trong manh » trong minh, trong anh, trong mach
manh toan » thanh toan, anh tuan, tinh toan
van dung » van dong, xay dung, tin dung
toan ban » van ban
va dung » va duong, vat dung, va ung

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 (chiet tach)) - thanh trung ((va dung) OR (van dung)) trong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - thanh trung ((va dung) OR (van dung)) trong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - thanh trung ((va dung) OR (van dung)) trong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - thanh trung ((va dung) OR (van dung)) trong manh toan ban*.