Perhaps you should try some spelling variations:
land letteratura » land literatur, una letteratura, la literatura
de letteratura » e letteratura, di letteratura, de litteratura
letteratura da » letteratura di, letteratura del, letteratura fra
la letteratura » la litterature, la literatura, e letteratura
grund libro » gran libro, und libro
grunde die » grunde der, grunde des, grundlage die
i grund » 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 libro de letteratura da ) 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 de letteratura da ) or ( i grunde die ((land letteratura) OR (la letteratura)) sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i grund libro de letteratura da ) or ( i grunde die ((land letteratura) OR (la letteratura)) sarda ))*.