Perhaps you should try some spelling variations:
letteratura sulla » letteratura russa, letteratura del
den letteratura » e letteratura, di letteratura, de litteratura
literature de » litterature de, literature die, literature d
i literature » ii literature
grunde der » grund der, grundzuge der, grundlage der
der den » wider den
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 den letteratura sulla ) OR ( i grand livre i literature de ))*.