Perhaps you should try some spelling variations:
"bibliothecae selectae" » "bibliotheca selecta", "bibliothecae mediceae", "bibliothecae regiae", "bibliotheke selectae"
"biblioteca medicea" » "bibliothecae mediceae", "biblioteca americana", "bibliotheca meadiana"
"bibliotheca selectissima" » "bibliothek selectissima"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("biblioteca medicea") OR ((("bibliothecae selectae") OR ("bibliotheca selectissima")))).
• Removing quotes may allow a broader search: (( biblioteca medicea ) or ((( bibliothecae selectae ) or ( bibliotheca selectissima )))).
• Adding a wildcard symbol may retrieve word variants: (("biblioteca medicea") or ((("bibliothecae selectae") or ("bibliotheca selectissima"))))*.