Perhaps you should try some spelling variations:
storia romantica » storia romanza, storia politica, teoria semantica
storia antica » storia gotica, historia antiga, storia critica
istituti pii » istituiti sic, instituti di, istituto per
istituto di » instituto de, instituto ad
istituti di » instituti di, istituiti sic, istituto del
%contributo » %contributor, %contribute, %contributi

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 della%((istituto di) OR (((istituti di) OR (istituti pii)))) ((storia antica) OR (storia romantica))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%contributo della%((istituto di) or (((istituti di) OR (istituti pii)))) ((storia antica) or (storia romantica))%22".
• Adding a wildcard symbol may retrieve word variants: %contributo della%((istituto di) or (((istituti di) OR (istituti pii)))) ((storia antica) or (storia romantica))%22*.