Perhaps you should try some spelling variations:
"literatura en un islam." » "literatura espana un islam.", "literatura en el islam.", "literatura en e islam.", "literatura en al islam."
"literatura de di islam." » "literatura de de islam.", "literatura de del islam.", "literatura de el islam.", "literatura de mi islam."
"literatura de si islam." » "literatura de el islam.", "literatura de e islam.", "literatura de al islam.", "literatura de su islam.", "literatura de mi islam."

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 en un islam.") or ((("literatura de di islam.") OR ("literatura de si islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura en un islam.") OR ((("literatura de di islam.") OR ("literatura de si islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura en un islam.\") or (((\"literatura de di islam.\") OR (\"literatura de si islam.\"))))".
• Removing quotes may allow a broader search: (( literatura en un islam. ) or ((( literatura de di islam. ) OR ( literatura de si islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura en un islam.") or ((("literatura de di islam.") OR ("literatura de si islam."))))*.