Perhaps you should try some spelling variations:
literature author » literature arts
de literature » de litterature, de lite'rature, de literatura
e letteratura » y literatura
grani libero » mari libero
i grani » i grandi, i grand, dei grani
i gran » i grand, i grain, i gram

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 gran libro de literature author ) OR ( i grani libero ((e letteratura) OR (e literatur)) arti )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i gran libro de literature author ) or ( i grani libero ((e letteratura) OR (e literatur)) arti ))".
• Adding a wildcard symbol may retrieve word variants: (( i gran libro de literature author ) or ( i grani libero ((e letteratura) OR (e literatur)) arti ))*.