Perhaps you should try some spelling variations:
"bibliothecae mediceae" » "biblioteca medicea", "bibliothecae regiae", "bibliothecae selectae"
"bibliotheca americana" » "bibliotheca askeviana", "bibliotheca martiniana", "bibliotheca salmoniana"
"biblioteca americana" » "biblioteca ambrosiana", "biblia americana", "biblioteca medicea"

Try widening your search to All Fields.

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: (("bibliothecae mediceae") OR ((("biblioteca americana") OR ("bibliotheca americana")))).
• Removing quotes may allow a broader search: (( bibliothecae mediceae ) or ((( biblioteca americana ) or ( bibliotheca americana )))).
• Adding a wildcard symbol may retrieve word variants: (("bibliothecae mediceae") or ((("biblioteca americana") or ("bibliotheca americana"))))*.