Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
de letteratura » e letteratura, di letteratura, de litteratura
literature die » literatur die, literatur1 die, literature does
literature de » litterature de, literature d, literature dr
grunde libro » grunde fir, grunde gibt, und libro
grand libro » gran libro, grand livre
libro i » libro di

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 grunde libro de letteratura sarda ) OR ( i grand libro i ((literature de) OR (literature die)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grunde libro de letteratura sarda ) or ( i grand libro i ((literature de) OR (literature die)) ))".
• Adding a wildcard symbol may retrieve word variants: (( i grunde libro de letteratura sarda ) or ( i grand libro i ((literature de) OR (literature die)) ))*.