Perhaps you should try some spelling variations:
storia romantica » storia romanza, storia antica, storia politica
contributo alla » contributi alla, contributo della, contributi dalla
contributo allo » contribute all, contributi alla, contributors alloy
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) OR (contributo allo))%((istituto di) OR (istituti di)) storia romantica%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((contributo alla) OR (contributo allo))%((istituto di) or (istituti di)) storia romantica%22".
• Adding a wildcard symbol may retrieve word variants: %((contributo alla) OR (contributo allo))%((istituto di) or (istituti di)) storia romantica%22*.