Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sach » chinh sach, chieu sang, chieu xanh
thanh toan » thanh hoa, thanh san, tinh toan
tuong cua » truong cua, huong cua, thong cua
dung dong » dung cong, vung dong, dung trong
manh toan » anh tuan, tinh toan
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chiet tach)) - thanh tuong cua dung dong ((manh toan) or (thanh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chiet tach)) - thanh tuong cua dung dong ((manh toan) OR (thanh toan)) ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chiet tach)) - thanh tuong cua dung dong ((manh toan) or (thanh toan)) ban*.