Perhaps you should try some spelling variations:
"storia e letteratura" » "storia y literatura", "storia e literatur"
"Storia la literatura" » "Storia la litterature", "Storia a literature"
storia la » storia a, storia le, historia la

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: (("storia e letteratura") OR ("Storia la literatura")).
• Removing quotes may allow a broader search: (( storia e letteratura ) or ( Storia la literatura )).
• Adding a wildcard symbol may retrieve word variants: (("storia e letteratura") or ("Storia la literatura"))*.