Perhaps you should try some spelling variations:
"literatura de josep isaac." » "literatura de jose isaac.", "literatura de joel isaac.", "literatura de joseph isaac.", "literatura de josue isaac."
"literatura y del islam." » "literatura y el islam."
"literatura de di isaac." » "literatura de de isaac.", "literatura de _ isaac.", "literatura de c isaac.", "literatura de mi isaac.", "literatura de si isaac."

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: (((("literatura de di isaac.") OR ("literatura de josep isaac."))) OR ("literatura y del islam."))~.
• Removing quotes may allow a broader search: (((( literatura de di isaac. ) or ( literatura de josep isaac. ))) or ( literatura y del islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de di isaac.") or ("literatura de josep isaac."))) or ("literatura y del islam."))*.