Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tran » thanh trang, thanh toan, thanh tra
hoc chieu » hoc thieu, ho chieu, hoc hien
van nang » van quang, van ban, van dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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 tran ((van nang) OR (van dong)) cong san toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh tran ((van nang) or (van dong)) cong san toan ban*.