Perhaps you should try some spelling variations:
"i grunde livre e letteratura sarda" » "i grunde livre e letteratura storia", "i grunde livre e letteratura sulla", "i grunde livre e letteratura arte", "i grunde livre y literatura sarda", "i grande livre e letteratura sarda", "i grand livre e letteratura sarda", "i grunde liegen e letteratura sarda", "i grunde livre de letteratura sarda", "i grunde livre en letteratura sarda", "i grunde livre et letteratura sarda"
"i grunde livre e literatur sarda" » "i grunde livre e literatur sarcoma", "i grunde livre e literatur smarte", "i grunde livre e literatur sach", "i grande livre e literatur sarda", "i grand livre e literatur sarda", "i grunde liegen e literatur sarda", "i grunde livre de literatur sarda", "i grunde livre en literatur sarda", "i grunde livre et literatur 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"

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