Perhaps you should try some spelling variations:
thanh tung » thanh cong
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
doc dien » duoc dien, doi dien, do dien
tung cho » dung cho, tung ho, tang cho
cho tong » cho trong, cho tuong, cho cong

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

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