Perhaps you should try some spelling variations:
letteratura greca » letteratura fra, literatura grega, letteratura cinema
literatura graeca » literatura alema, literatura oral
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
la letteratura » la litterature, la literatura, e letteratura
grund libro » gran libro
grunde des » grund des, grunde der, grundzuge des
und libro » un libro, und librosa, und lido
des la » des lage, des 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 ((grund libro) OR (und libro)) i ((letteratura greca) OR (literatura graeca)) ) OR ( i grunde des la letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i ((grund libro) OR (und libro)) i ((letteratura greca) or (literatura graeca)) ) or ( i grunde des la letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i ((grund libro) OR (und libro)) i ((letteratura greca) or (literatura graeca)) ) or ( i grunde des la letteratura sarda ))*.