Perhaps you should try some spelling variations:
de litteratura » de literatura, e letteratura, da literatura
de litterature » la litterature, et litterature
literatura en » literatura y
literatura de » literatura y
i grundei » i grunde, i grund
libro di » libro de, libri di, libro del
libro i » libro de
i grand » i grunde

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 grundei libri ((de litteratura) OR (de litterature)) sarda ) OR ( i grand ((libro i) OR (libro di)) ((literatura de) OR (literatura en)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grundei libri ((de litteratura) OR (de litterature)) sarda ) or ( i grand ((libro i) or (libro di)) ((literatura de) or (literatura en)) ))".
• Adding a wildcard symbol may retrieve word variants: (( i grundei libri ((de litteratura) OR (de litterature)) sarda ) or ( i grand ((libro i) or (libro di)) ((literatura de) or (literatura en)) ))*.