iOS search finds media files - not perfect yet

I have a Plex Library that’s shared with Infuse.

For the first time when I do a search on iOS search field for a movie the media files in the Plex library show up under the Infuse app. The problem is if I type the entire word, the found files disappear. I only get results if I type a partial media title

For example, the title Saturday Night Live.
I only get a search result if I type “Saturday Nigh”strong text, if I type the t then the results disappear.