Start with OneSearch.
Click on the Scores icon, enter keywords, then choose Stetson from the pull down, and click the search icon.
The results show flute and piano scores that our library owns. Note that the filter is set to Musical Score and Stetson University.
The results list shows the title, author(s), the item's status (Available, Checked Out, On Hold, etc.), the location (Shelves or Miniature Scores or Chamber Music or Oversize Music) and the call number.
Both of these scores are Available and located in Shelves in the M call number section.
Click on the title to see more details about the item.
Click View Description to see a Contents list, a list of subjects, and more information about the item. This item includes scores and parts.
To see more works with the same combination of instruments, click on the Subjects link Sonatas (Flute and piano) Scores and parts. That starts a new search, so you may need to limit results under Library to Stetson.