Perhaps you should try some spelling variations:
litterature author » literature author, literature authors, literature anthony
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
grandde liberte » grande liberte
du letteratura » di letteratura, su letteratura, sua letteratura
grand libro » grand livre
i grandde » i grunde, i grand, i grandi

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 ((grand libro) OR (gran libro)) _ litterature author ) OR ( i grandde liberte du letteratura sarda )).
• Adding a wildcard symbol may retrieve word variants: (( i ((grand libro) or (gran libro)) _ litterature author ) or ( i grandde liberte du letteratura sarda ))*.