A couple of recent examples.
I *think* I know there is a /PR thread on Russia Sanctions. I'm a pretty sure it is titled either "Russia Sanctions" or "Russian Sanctions"
Advanced search of any of those words in title doesn't being it up. (Using Chrome)
I also know there is a thread on the Steve Scalise shooting at the congressional baseball game practice. I searched a ton of different terms and couldn't find it.
Another poster in OMNI/PR had the same issue trying to find it.
I am convinced that the search function, at least for me and some other posters, isn't bringing up all of the threads it should.