Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
literatur greca » literatura graeca, literatura grega, literaturas grecia
des lage » des langen, des lagers, des land
libro e » libro de, libero e, libro _
libro i » libro di, libro de
des la » des 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) OR (libro i)) literatur greca ) OR ( i grunde ((des la) OR (des lage)) letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i und ((libro e) OR (libro i)) literatur greca ) or ( i grunde ((des la) or (des lage)) letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i und ((libro e) OR (libro i)) literatur greca ) or ( i grunde ((des la) or (des lage)) letteratura sarda ))*.