Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh thao » thanh thanh, thanh thang, thanh pho
hieu lang » chieu sang, hieu quang, nhieu tang
tranh van » tran van, trinh van, thanh van
van hang » van khang, van hoang, van thang
nong dan » nong san, nguong dan, huong dan
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: ho ((hieu lang) OR (chieu xanh)) - canh tranh van hang ((nong dan) OR (cong dan)) thanh thao~.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu xanh)) - canh tranh van hang ((nong dan) or (cong dan)) thanh thao*.