Perhaps you should try some spelling variations:
"literatura del el islam." » "literatura en el islam.", "literatura del eln islam.", "literatura del eo islam."
"literatura de di isaac." » "literatura de de isaac.", "literatura de _ isaac.", "literatura de c isaac.", "literatura de mi isaac.", "literatura de si isaac."
"literatura y de islam." » "literatura y del islam.", "literatura y de isla.", "literatura y e islam."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura de di isaac.") or ("literatura y de islam."))) or ("literatura del el islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de di isaac.") OR ("literatura y de islam."))) OR ("literatura del el islam.")).
• Removing quotes may allow a broader search: (((( literatura de di isaac. ) or ( literatura y de islam. ))) or ( literatura del el islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura de di isaac.") or ("literatura y de islam."))) or ("literatura del el islam."))*.