Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
letteratura greca » literatura graeca, letteratura fra, letteratura cinema
literatura grega » literatura graeca, literature greg, literaturas grecia
la letteratura » la litterature, la literatura, e letteratura
groups air » groups fair, groups a, groups am
groups die » groups dye, groups de, groups diels
ii groups » ii group, lie groups, 2 groups
i groups » 2 groups, 1 groups, 3 groups
die la » die lan, die lage, die land
air e » air en, air _, air a

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 groups air e ((letteratura greca) OR (literatura grega)) ) OR ( ii groups die la letteratura sarda ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i groups air e ((letteratura greca) OR (literatura grega)) ) or ( ii groups die la letteratura sarda ))*".