Perhaps you should try some spelling variations:
literatura sarda » letteratura sarda, literatura arab, literatura fakta
literatur greca » literatura graeca, literatura grega, literaturas grecia
la literatura » la litterature, a literature
grunde fir » grunde fur, grunde die, grunde zur
grunde der » grund der, grundzuge der, grundlage der
libro e » libro de, libero e, libro i
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 e literatur greca ) OR ( i ((grunde fir) OR (grunde der)) la literatura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i gran libro e literatur greca ) or ( i ((grunde fir) OR (grunde der)) la literatura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i gran libro e literatur greca ) or ( i ((grunde fir) OR (grunde der)) la literatura sarda ))*.