Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
de letteratura » e letteratura, di letteratura, de litteratura
literatura de » literatura y, literatura en
i literatura » ii literatura, y literatura, i literature
grunde der » grund der, grundzuge der, grundlage der
livre i » livro i, livre 1, livre qui

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 grunde der de letteratura sarda ) OR ( i grand livre i literatura de )).
• Adding a wildcard symbol may retrieve word variants: (( i grunde der de letteratura sarda ) or ( i grand livre i literatura de ))*.