Perhaps you should try some spelling variations:
contributi dalla » contributi alla, contributo della, contributo alla
contribute all » contributi alla, contributo alla, contributo allo
storia gotica » storia antica, storia politica, storia critica
instituto ad » instituto de, instituto _, institutos de
istituti pii » istituiti sic, istituto di, instituti di
istituti di » instituti di, istituto di, 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: %((contributi dalla) OR (contribute all))%((instituto ad) OR (((istituti di) OR (istituti pii)))) storia gotica%22.
• Adding a wildcard symbol may retrieve word variants: %((contributi dalla) or (contribute all))%((instituto ad) or (((istituti di) or (istituti pii)))) storia gotica%22*.