Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nang quan » ban quan, nang suat
quan hang » quan hoang, quan lang, quan hanh
anh nang » ganh nang, anh bang, anh dang
nong van » song van, nong san, tong van
nong dan » cong dan, nong san, nguong dan
tuan thu » toan thuc, van thu

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: theo ((chieu xanh) OR (chieu tinh)) - anh nang quan hang ((nong van) OR (nong dan)) tuan thu~.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu tinh)) - anh nang quan hang ((nong van) or (nong dan)) tuan thu*.