Search for text in log containing say, "non contact" but not just "contact"

[here2infinity]

I have logs that say both contact and non contact. I would like to distinguish them in a search with the complete "non contact" but eliminate all that just say "contact". 

[impurush]

@here2infinity 
You can use like this directly

<your query> "non contacts" to show the logs only it has the term

<your query> NOT "non contacts" to show the logs only the contacts term has.

I have tested in my splunk and it is working.