Perhaps you should try some spelling variations:
historia antiga » historia antigua, historia antiqua, historia argentina
instituto de » institut der, institution der
istituto di » 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 OR %contribute) della%((((istituto di) OR (instituto de))) OR (istituti di)) historia antiga%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(%contributo OR %contribute) della%((((istituto di) or (instituto de))) or (istituti di)) historia antiga%22".
• Adding a wildcard symbol may retrieve word variants: (%contributo OR %contribute) della%((((istituto di) or (instituto de))) or (istituti di)) historia antiga%22*.