Perhaps you should try some spelling variations:
litterature author » literature author, literature authors, literature anthony
de litterature » la litterature, et litterature
y literatura » la literatura
literatura e » literatura en, literatura de, literatura y
di grande » de grande, da grande, _ grande
riviere y » riviere p, riviere _, riviere a
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 litterature author ) OR ( di grande riviere y literatura e )).
• Adding a wildcard symbol may retrieve word variants: (( i gran libro de litterature author ) or ( di grande riviere y literatura e ))*.