Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, hien khanh
cua nhung » va nhung
cua dang » cua cong, cua ban
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 ((hien xanh) OR (chieu xanh)) - thanh tung ((cua nhung) OR (cua dang)) cong san toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - thanh tung ((cua nhung) or (cua dang)) cong san toan ban*.