Perhaps you should try some spelling variations:
"literatura breve de islam." » "literatura en de islam.", "literatura del de islam.", "literatura e de islam.", "literatura breve del islam.", "literatura breve de isla.", "literatura breve e islam."
"literatura de un islam." » "literatura de el islam.", "literatura de e islam.", "literatura de _ islam."
"literatura de al islam." » "literatura de el islam.", "literatura de del islam.", "literatura de e 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 breve de islam.") or ((("literatura de un islam.") OR ("literatura de al islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura breve de islam.") OR ((("literatura de un islam.") OR ("literatura de al islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura breve de islam.\") or (((\"literatura de un islam.\") OR (\"literatura de al islam.\"))))".
• Removing quotes may allow a broader search: (( literatura breve de islam. ) or ((( literatura de un islam. ) OR ( literatura de al islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve de islam.") or ((("literatura de un islam.") OR ("literatura de al islam."))))*.