Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
literatur greca » literatura graeca, literatura grega, literaturas grecia
la letteratura » la litterature, la literatura, e letteratura
grund libro » gran libro, und libro
grunde fir » grunde fur, grunde die, grunde zur
grunde der » grund der, grundzuge der, grundlage der
i grund » i grunde, i ground, i grand
libro e » libro de, libero e, libro i

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 grund libro e literatur greca ) OR ( i ((grunde fir) OR (grunde der)) la letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grund libro e literatur greca ) or ( i ((grunde fir) OR (grunde der)) la letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund libro e literatur greca ) or ( i ((grunde fir) OR (grunde der)) la letteratura sarda ))*.