Perhaps you should try some spelling variations:
letteratura sulla » letteratura russa, letteratura del
et letteratura » e letteratura, et litterature, di letteratura
de literatura » de litterature, la literatura, y literatura
literatura en » literatura y
grunde livre » grand livre, grunde liegen, grunde die
grande livre » grand livre, grands livres, grande liberte
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 gran libro de literatura en ) OR ( i ((grunde livre) OR (grande livre)) et letteratura sulla )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i gran libro de literatura en ) or ( i ((grunde livre) OR (grande livre)) et letteratura sulla ))".
• Adding a wildcard symbol may retrieve word variants: (( i gran libro de literatura en ) or ( i ((grunde livre) OR (grande livre)) et letteratura sulla ))*.