The photo search "within Search Results" Does not work. (not for me anyway)
I shall Explain. when you search "photos & videos" "Find" say "bloggs"
20 results come up, You then want to find any photos for "Joe" so you select "Within Search Results" and enter "Joe" and click search. you then get all photos with "Joe Whatever" and the search feature has returned to "New search" (it should stay on "within search result") and you should only have a result from the original 20 not all the photos on the site.
If you do the same thing on the search for people in "Family Tree Individuals" and use the "within Search" feature it works correctly.