Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trong hach » trong mach, trong cach, trong hanh
hach toan » thanh toan, manh toan
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) OR (chieu sang)) - thanh trung ((ap dung) OR (xay dung)) trong hach toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - thanh trung ((ap dung) or (xay dung)) trong hach toan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - thanh trung ((ap dung) or (xay dung)) trong hach toan tap*.