Perhaps you should try some spelling variations:
letteratura greca » literatura graeca, letteratura fra, literatura grega
land letteratura » land literatur, una letteratura, la literatura
la letteratura » la litterature, la literatura, di letteratura
e letteratura » y literatura, e literatur
grund libro » gran libro, und libro
grunde die » grunde der, grunde des, grundlage die
i grund » 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 letteratura greca ) OR ( i grunde die ((land letteratura) OR (la letteratura)) sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grund libro e letteratura greca ) or ( i grunde die ((land letteratura) OR (la letteratura)) sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund libro e letteratura greca ) or ( i grunde die ((land letteratura) OR (la letteratura)) sarda ))*.