Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
de litterature » la litterature, et litterature
la letteratura » la litterature, la literatura, e letteratura
litterature y » litterature et, litterature de, litterature en
grunde die » grunde der, grunde des, grundlage die
i gran » i grand, i grain, i grani
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 gran libro de litterature y ) OR ( i grunde die la letteratura sarda ))*.