Perhaps you should try some spelling variations:
letteratura sulla » letteratura russa, letteratura del
letteratura sarda » letteratura storia, letteratura arte, letteratura arti
literature de » litterature de, literature die, literature d
grunde libro » grunde fir, grunde gibt, und libro
i literature » ii literature
libro di » libro de, libri di, libro del
livre i » livro i, livre 1, livre qui

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