Perhaps you should try some spelling variations:
litterature sarda » letteratura sarda, litterature par, litterature serbe
literatur greca » literatura graeca, literatura grega, literaturas grecia
la litterature » a literature
grunde die » grunde der, grunde des, grundlage die
und libro » un libro, und librosa
und lido » und lie, und li
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 lido)) e literatur greca ) OR ( i grunde die la litterature sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i ((und libro) OR (und lido)) e literatur greca ) or ( i grunde die la litterature sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i ((und libro) OR (und lido)) e literatur greca ) or ( i grunde die la litterature sarda ))*.