Perhaps you should try some spelling variations:
"bibliotheca smithiana" » "bibliotheca banksiana", "bibliotheca harleiana"
"biblioteca americana" » "bibliotheca americana", "biblioteca ambrosiana", "biblia americana"
"biblioteca medicea" » "bibliothecae mediceae", "bibliotheca meadiana", "bibliotheca indica"

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: (((("biblioteca medicea") OR ("biblioteca americana"))) OR ("bibliotheca smithiana")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"biblioteca medicea\") OR (\"biblioteca americana\"))) or (\"bibliotheca smithiana\"))".
• Removing quotes may allow a broader search: (((( biblioteca medicea ) OR ( biblioteca americana ))) or ( bibliotheca smithiana )).
• Adding a wildcard symbol may retrieve word variants: (((("biblioteca medicea") OR ("biblioteca americana"))) or ("bibliotheca smithiana"))*.