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 es x islam.", "literatura des e islam.", "literatura des _ islam.", "literatura des al islam."
"literatura des el islam." » "literatura de el islam.", "literatura del el islam.", "literatura es el islam.", "literatura des del islam.", "literatura des en islam.", "literatura andes 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 des el 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 des el islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura breve de isaac.\") or (((\"literatura des x islam.\") OR (\"literatura des el islam.\"))))".
• Removing quotes may allow a broader search: (( literatura breve de isaac. ) or ((( literatura des x islam. ) OR ( literatura des el islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve de isaac.") or ((("literatura des x islam.") OR ("literatura des el islam."))))*.