Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
literatura graeca » literatura alema, literatura oral
literatur greca » literatura grega, literaturas grecia, literature greece
la letteratura » la litterature, la literatura, e letteratura
und librosa » und fibrose
grunde die » grunde der, grunde des, grundlage die
und libro » un libro, und lido
die la » die lan, die lage, die land

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