Perhaps you should try some spelling variations:
"literatura espana en islam." » "literatura espanola en islam.", "literatura mexicana en islam.", "literatura espana el islam.", "literatura espana e islam.", "literatura espana un islam."
"literatura _ del islam." » "literatura _ el islam."
"literatura de de isaac." » "literatura de fe isaac.", "literatura de di isaac."

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

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