A basic search of #image in John Piper's The Legacy of Christian Joy, should return several pictures of swans. Instead it says no results.
When I run this search, it is returning 16 results in 14 articles. Is it possible that you were indexing when you ran this search initially?
It still doesn't work:
I even hid the resource then unhid it and waited for indexing to finish, but I still get nothing.
FYI: The swans are what we call "decorative embellishments" and those are specially marked up not to return in search results. The same apply to publisher logos or anything similar.
I see this resource is older, and do not contain the special markup though. I can replicate your report, but it seems correct like the correct behaviour in this case