Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trong hach » trong mach, trong cach, trong hanh
hach toan » thanh toan, manh toan
ho chieu » theo chieu, hoc thieu, doi chieu
toan tap » toan ban
ap dung » van dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung ((ap dung) OR (xay dung)) trong hach toan tap~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung ((ap dung) or (xay dung)) trong hach toan tap*.