OSX Search in reminders does not find everything

I have a list in my Reminders of books. When I use the Reminders search function it does not find all the entries. For instance, I search for "Ray" and it finds several entries in several different Lists but it does not find one particular entry.

I have tried removing Events and Reminders from the Spotlight setting, then restarting my Mac, then adding Events and Reminders back and waiting. That did not fix it. I tried modifying the entry slightly, that did not fix it. I added a new entry with similar text and that is found with the search.

I can do the same search on my iPhone and it finds the entry.

My Macbook is on 15.6. I don't know how long this search failure has been happening.