Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
letteratura fra » letteratura da, letteratura greca, letteratura arte
di letteratura » e letteratura, de literatura, della letteratura
grain libro » gran libro, grain fibril
general en » general et
general e » general et
libro di » libro de, libri di, libro del
i grain » ii grain
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 grain libro di letteratura sarda ) OR ( i grand ((general e) OR (general en)) letteratura fra )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grain libro di letteratura sarda ) or ( i grand ((general e) OR (general en)) letteratura fra ))".
• Adding a wildcard symbol may retrieve word variants: (( i grain libro di letteratura sarda ) or ( i grand ((general e) OR (general en)) letteratura fra ))*.