Perhaps you should try some spelling variations:
literatur greca » literatura graeca, literatura grega, literaturas grecia
la letteratura » la litterature, e letteratura, di letteratura
la literatura » la litterature, a literature
grunde fir » grunde fur, grunde der, grunde die
libero e » libera me, liber de, liber _
i grund » i ground, i grand
libro e » libro de, libro i, libro _

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) OR (libero e)) literatur greca ) OR ( i grunde fir ((la letteratura) OR (la literatura)) storia )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grund ((libro e) or (libero e)) literatur greca ) or ( i grunde fir ((la letteratura) OR (la literatura)) storia ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund ((libro e) or (libero e)) literatur greca ) or ( i grunde fir ((la letteratura) OR (la literatura)) storia ))*.