Perhaps you should try some spelling variations:
contributi dalla » contributi alla, contributo della, contributo alla
historia antiga » historia antigua, historia antiqua, historia argentina
storia antica » storia gotica, storia romantica, storia critica
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: %contributi dalla%((istituto di) OR (istituti di)) ((storia antica) OR (historia antiga))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%contributi dalla%((istituto di) or (istituti di)) ((storia antica) OR (historia antiga))%22".
• Adding a wildcard symbol may retrieve word variants: %contributi dalla%((istituto di) or (istituti di)) ((storia antica) OR (historia antiga))%22*.