Perhaps you should try some spelling variations:
fonti storiche » note storiche, forme storiche
e letteratura » y literatura, e literatur
e digitale » die digitale, wie digitale, eine digitale
e digital » age digital, die digital
cartaceo » cartacee, cartacei, cartacea

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: fonti storiche ((e letterari) OR (e letteratura)) – ledizioni cartaceo ((e digitale) OR (e digital)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "fonti storiche ((e letterari) or (e letteratura)) – ledizioni cartaceo ((e digitale) OR (e digital))".
• Adding a wildcard symbol may retrieve word variants: fonti storiche ((e letterari) or (e letteratura)) – ledizioni cartaceo ((e digitale) OR (e digital))*.