Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
hang luan » tang luan, dung luan
dang cong » dung cong
van thanh » ban thanh, van tuan
luan cua » quan cua, lua cua, luat cua
cua dang » cua cong, cua ban
san than » sang than, san thanh, ban than

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 ((hieu manh) OR (chieu xanh)) - hang luan cua dang cong ((san than) OR (van thanh)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hang luan cua dang cong ((san than) or (van thanh)) ban*.