Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
thanh toan » thanh hoa, thanh san, tinh toan
dien sach » dien anh
tong cong » trong cong, cong cong, dung cong
manh toan » anh tuan, tinh toan
cho tong » cho trong, cho tuong, cho cong
do dien » doi dien, co dien, o dien

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

• Performing a fuzzy search may retrieve terms with similar spellings: do dien sach - thanh dung cho tong cong ((manh toan) or (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: do dien sach - thanh dung cho tong cong ((manh toan) OR (thanh toan)) cao.
• Adding a wildcard symbol may retrieve word variants: do dien sach - thanh dung cho tong cong ((manh toan) or (thanh toan)) cao*.