Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
letteratura fra » letteratura da, letteratura greca, letteratura arte
de letteratura » e letteratura, di letteratura, de litteratura
la letteratura » la litterature, la literatura, e letteratura
grundlage der » grundlagen der
grain libro » gran libro, grain fibril
grunde der » grund der, grundzuge der
i grain » ii grain

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 grain libro de letteratura fra ) OR ( i ((grunde der) OR (grundlage der)) la letteratura sarda ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grain libro de letteratura fra ) or ( i ((grunde der) OR (grundlage der)) la letteratura sarda ))*".