Perhaps you should try some spelling variations:
"literatura espana de islam." » "literatura espanola de islam.", "literatura mexicana de islam.", "literatura despana de islam.", "literatura delspana de islam.", "literatura espana de isla.", "literatura espana de ilam.", "literatura espana de islas.", "literatura espana del islam."
"literatura en del islam." » "literatura de del islam.", "literatura den del islam.", "literatura deln del islam.", "literatura en el islam."
"literatura e e islam." » "literatura de e islam.", "literatura del e islam.", "literatura e el islam.", "literatura e e islas.", "literatura e de islam.", "literatura el e islam."

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