Perhaps you should try some spelling variations:
"literatura caribe y islam." » "literatura arabe y islam.", "literatura arte y islam.", "literatura maria y islam.", "literatura caribe e islam.", "literatura caribe _ islam.", "literatura caribe el islam."
"literatura de fe isaac." » "literatura de de isaac.", "literatura de e isaac.", "literatura de _ isaac."
"literatura de de isla." » "literatura de de isaac.", "literatura de di isla."

Try widening your search to All Fields.

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 de isla.") or ("literatura de fe isaac."))) or ("literatura caribe y islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de de isla.") OR ("literatura de fe isaac."))) OR ("literatura caribe y islam.")).
• Removing quotes may allow a broader search: (((( literatura de de isla. ) or ( literatura de fe isaac. ))) or ( literatura caribe y islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura de de isla.") or ("literatura de fe isaac."))) or ("literatura caribe y islam."))*.