Perhaps you should try some spelling variations:
"i grand livre e letteratura sarda" » "i grand livre e letteratura storia", "i grand livre e letteratura sulla", "i grand livre e letteratura arte", "i grand livre y literatura sarda", "i grand livre e literatur sarda", "i grunde livre e letteratura sarda", "i grand livre de letteratura sarda", "i grand livre en letteratura sarda", "i grand livre et letteratura sarda"
"i gram libro de literatura de" » "i gram libro de litterature de", "i gram libro la literatura de", "i gram libro y literatura de", "i gram libro de literatura y", "i gram libro de literatura en", "i gran libro de literatura de"
"bi gram libro de literatura de" » "bi gram libro de litterature de", "bi gram libro la literatura de", "bi gram libro y literatura de", "bi gram libro de literatura y", "bi gram libro de literatura en", "bi gran libro de literatura de", "ii gram libro de literatura de"

Try widening your search to All Fields.

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 gram libro de literatura de") OR ("bi gram libro de literatura de"))) OR ("i grand livre e letteratura sarda")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"i gram libro de literatura de\") OR (\"bi gram libro de literatura de\"))) or (\"i grand livre e letteratura sarda\"))".
• Removing quotes may allow a broader search: (((( i gram libro de literatura de ) OR ( bi gram libro de literatura de ))) or ( i grand livre e letteratura sarda )).
• Adding a wildcard symbol may retrieve word variants: (((("i gram libro de literatura de") OR ("bi gram libro de literatura de"))) or ("i grand livre e letteratura sarda"))*.