Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua dong » chua dong, cua cong, cua dang
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
than ban » thanh ban, toan ban, than man

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 - hanh trung cua dong ((cong ban) OR (cong san)) than ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trung cua dong ((cong ban) or (cong san)) than ban*.