Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
la letteratura » la litterature, la literatura, e letteratura
grunde die » grunde der, grunde des, grundlage die
und libro » un libro, und librosa, und lido
die la » die lan, die lage, die land
i und » _ und, 1 und, 2 und

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 und libro ((e literatur) OR (die literatur)) greca ) OR ( i grunde die la letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i und libro ((e literatur) OR (die literatur)) greca ) or ( i grunde die la letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i und libro ((e literatur) OR (die literatur)) greca ) or ( i grunde die la letteratura sarda ))*.