Perhaps you should try some spelling variations:
nganh nong » nganh cong
chu xanh » chu manh, chieu xanh, chua xang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
cua chu » sua chua
nong va » nong van, dong va, cong va
va bang » va nang, va lang, va ban
ran cau » van cau, ban cau, can cau

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chu xanh - nganh nong va bang ((cong tan) OR (cong san)) ran cau~".
• Adding a wildcard symbol may retrieve word variants: cua chu xanh - nganh nong va bang ((cong tan) OR (cong san)) ran cau*.