Perhaps you should try some spelling variations:
storia romantica » storia romanza, storia antica, storia politica
contributo alla » contributi alla, contributo allo, contributo della
istituto di » instituto de, instituto ad
istituti di » instituti di, istituti pii, istituiti sic

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: %contributo alla%((istituto di) OR (istituti di)) storia romantica%22.
• Adding a wildcard symbol may retrieve word variants: %contributo alla%((istituto di) or (istituti di)) storia romantica%22*.