Perhaps you should try some spelling variations:
del letteratura » della letteratura, e letteratura, di letteratura
letteratura fra » letteratura da, letteratura greca, letteratura sarda
grani generali » grand general, grant general, grade general
de literatura » de litterature, la literatura, y literatura
de literatur » de literatuur, de litterature, erde literatur
generali del » general del, generale del, generali e
i grani » i grandi, i grand, dei grani
i gran » i grand, i grain, i gram

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 literatur) OR (de literatura)) arti ) OR ( i grani generali del letteratura fra ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i gran libro ((de literatur) OR (de literatura)) arti ) or ( i grani generali del letteratura fra ))*".