Perhaps you should try some spelling variations:
nganh nong » nganh cong
chua nang » chuc nang, chua xang, kha nang
chu xanh » chu manh, chieu xanh, chua xang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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.

• Performing a fuzzy search may retrieve terms with similar spellings: cua ((chu xanh) or (chua nang)) - nganh nong va bang ((cong tan) or (cong san)) ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua ((chu xanh) OR (chua nang)) - nganh nong va bang ((cong tan) OR (cong san)) ran cau.
• Adding a wildcard symbol may retrieve word variants: cua ((chu xanh) or (chua nang)) - nganh nong va bang ((cong tan) or (cong san)) ran cau*.