Perhaps you should try some spelling variations:
della letteratura » e letteratura
nella letteratura » e letteratura
i grandi » i grand, e grandi, dei grandi
i grani » i grand, dei grani, de grani

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: ((i grandi) OR (i grani)) libri ((nella letteratura) OR (della letteratura)) arti.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((i grandi) or (i grani)) libri ((nella letteratura) OR (della letteratura)) arti".
• Adding a wildcard symbol may retrieve word variants: ((i grandi) or (i grani)) libri ((nella letteratura) OR (della letteratura)) arti*.