Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
letteratura fra » letteratura da, letteratura greca, letteratura arte
la letteratura » la litterature, la literatura, e letteratura
libri del » libro del, libri de, libri sex
i grund » i grunde, i ground, i grand
i magni » i magna, i magi

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 grund ((libri del) OR (libri duo)) letteratura fra ) OR ( i magni ((libri del) OR (libri duo))la letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grund ((libri del) OR (libri duo)) letteratura fra ) or ( i magni ((libri del) OR (libri duo))la letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund ((libri del) OR (libri duo)) letteratura fra ) or ( i magni ((libri del) OR (libri duo))la letteratura sarda ))*.