Perhaps you should try some spelling variations:
letteratura sulla » letteratura russa, letteratura del
ii letteratura » di letteratura, e letteratura, la letteratura
de litterature » la litterature, et litterature
de literatura » la literatura, y literatura, a literatura
libri ii » libri iii, libri iv, libri v
i grund » i grunde, i ground, i grand
i gran » i grand, i grain, i 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 grund libri ii letteratura sulla ) OR ( i gran libro ((de literatura) OR (de litterature)) y )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grund libri ii letteratura sulla ) or ( i gran libro ((de literatura) OR (de litterature)) y ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund libri ii letteratura sulla ) or ( i gran libro ((de literatura) OR (de litterature)) y ))*.