Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cong manh » cong danh, duong manh, cong thanh
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan

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 trinh cua dang ((cong manh) OR (cong dan)) van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trinh cua dang ((cong manh) or (cong dan)) van ban*.