Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trong van » trong cac
lap dung » lan dung, cap dung, lam dung
van toan » van tuan, van tan, van thanh
toan ban » van ban
ap dung » xay 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: hoc chieu xanh - thanh trung ((lap dung) OR (ap dung)) trong van toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung ((lap dung) or (ap dung)) trong van toan ban*.