Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
de letteratura » e letteratura, di letteratura, de litteratura
iii literatur » viii literatur, ii literatur, vii literatur
literatur de » literatur die, literatur der, literatur des
grunde des » grund des, grunde der, grundzuge des
livre iii » livro iii, livre ii, livre qui
des de » des des

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 des de letteratura sarda ) OR ( i grand livre iii literatur de )).
• Adding a wildcard symbol may retrieve word variants: (( i grunde des de letteratura sarda ) or ( i grand livre iii literatur de ))*.