Search Photo Gallery question

Hello,
I'm using Photo Gallery, and have all my pictures tagged. My question
is, how can I more specifically search for tagged pictures? For
instance, if I want to find all pictures tagged with only "Emily" and
"Mary," no other tags, how do I do this? I know I can use the start
search in windows, but what "language" do I use to include two tags,
while excluding all others? Thank you.


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jukieklein