Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del de isaac."
"literatura des x islam." » "literatura de x islam.", "literatura del x islam.", "literatura desde x islam.", "literatura des e islam.", "literatura des _ islam.", "literatura des el islam."
"literatura es y islam." » "literatura en y islam.", "literatura e y islam.", "literatura el y islam.", "literatura es e islam.", "literatura es _ islam.", "literatura es el 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 isaac.") or ((("literatura des x islam.") or ("literatura es y islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura breve de isaac.") OR ((("literatura des x islam.") OR ("literatura es y islam.")))).
• Removing quotes may allow a broader search: (( literatura breve de isaac. ) or ((( literatura des x islam. ) or ( literatura es y islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve de isaac.") or ((("literatura des x islam.") or ("literatura es y islam."))))*.