I have a client site that we did not build. If we search for a node by title, it does not appear in the results. 

I'm adding screenshots of the search configuration. I don't see anything that is incorrect?

Example: There is a post with the title "September: Deaf Awareness Month". When  I search for September, this page does not come up in the results. In fact, I got no results for this particular search.

What should I try next?

Comments

If you have a sandbox version, you could try rebuilding the search index perhaps. I am spitballing!

Another spitball (get your rain coat ;-) ) - does searching for "September:" or "Awareness" get results?