Perhaps you should try some spelling variations:
istituiti sic » istituti pii
storia antica » storia gotica, storia romantica, historia antiga
istituto di » instituto de, instituto ad
istituti di » instituti di, istituti pii, 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 (((istituiti sic) OR (istituti di)))) storia antica%22.
• Adding a wildcard symbol may retrieve word variants: %contributo della%((istituto di) or (((istituiti sic) or (istituti di)))) storia antica%22*.