Perhaps you should try some spelling variations:
la republica » la republique, _ republican
di convegno » del convegno
del casa » della casa, del casato, del cauca
del caso » el caso, del campo
state la » state law, state lab, states la
il caso » el caso

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: di convegno ((del casa) OR (((del caso) OR (il caso)))) zuccari / state la republica.
• The words AND, OR and NOT may confuse the search; try adding quotes: "di convegno ((del casa) or (((del caso) OR (il caso)))) zuccari / state la republica".
• Adding a wildcard symbol may retrieve word variants: di convegno ((del casa) or (((del caso) OR (il caso)))) zuccari / state la republica*.