Perhaps you should try some spelling variations:
storia politica » historia politica, teoria politica, historico politica
contributo alla » contributi alla, contributo allo, contributo della
storia critica » historia critica, teoria critica, stories critical
storia gotica » storia antica, storia emotiva, storia greca
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 gotica) OR (storia critica))) OR (storia politica))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%contributo alla%((istituto di) or (istituti di)) ((((storia gotica) OR (storia critica))) or (storia politica))%22".
• Adding a wildcard symbol may retrieve word variants: %contributo alla%((istituto di) or (istituti di)) ((((storia gotica) OR (storia critica))) or (storia politica))%22*.