As the screenshot below shows, the NT Use of the OT interactive has 47 times where Hebrews makes use of the Psalms (left of screenshot)
But a search seeking to combine them returns no results (right of screenshot)

Should we be able to combine these two parameters in this way?
I know I could get results I am looking for by simple searching for the Source and restricting the range of the search to Hebrews but I'm trying to understand why approach shown doesn't work
Thanks, Graham