Perhaps you should try some spelling variations:
letteratura del » letteratura di, literatura del, literatura de
grunde liegen » zugrunde liegen, grunde gegen, zugrunde liegende
grunde livre » grande livre, grand livre, grunde die
libri della » libri dalla, libri nella, libri del
libro della » libro del, piero della
i grund » i grunde, i ground, i grand

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 ((libri della) OR (libro della)) letteratura del ) OR ( i ((grunde livre) OR (grunde liegen)) _ letteratura e )).
• Adding a wildcard symbol may retrieve word variants: (( i grund ((libri della) or (libro della)) letteratura del ) or ( i ((grunde livre) or (grunde liegen)) _ letteratura e ))*.