Perhaps you should try some spelling variations:
della letteratura » nella letteratura, e letteratura
literatura de » literatura y, literatura en
v literatura » y literatura, v literatur, a literatura
grani libri » gran libro, amandi libri
grunde der » grund der, grundzuge der, grundlage der
der della » der sella, der delta, der cella
i grani » i grandi, i grand, dei grani

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 grani libri v literatura de ) OR ( i grunde der della letteratura e )).
• Adding a wildcard symbol may retrieve word variants: (( i grani libri v literatura de ) or ( i grunde der della letteratura e ))*.