I don't have great experience with searching because I found L3's explanation in the help unintelligible (archane, technical) and never got the results I expected. Now I'm in a similar boat with L4 except there are no help files explanations.
I thought AND meant both/all terms have to be present and OR means one of the terms has to be present.
I ran a basic search for "innocent" AND "innocences" in one resource and got 2 hits. One hit had innocent and the other had innocence. The results said I got "4 results in 2 articles." The words were highlighted in red/pink - just one in each reference. I open the resource - no extra highlights and no other word.
I ran the same search with OR - identical results.


Here's a screen shot of one of the resources. I can't see two hits or the other word.

Is this a Bug or a mistake by me?
Chris