Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura e de isaac."
"literatura des x islam." » "literatura de x islam.", "literatura es x islam.", "literatura desde x islam.", "literatura des e islam.", "literatura des _ islam.", "literatura des el islam."
"literatura del x islam." » "literatura de x islam.", "literatura en x islam.", "literatura del e islam.", "literatura del _ islam.", "literatura del el islam.", "literatura del xx islam.", "literatura del xv islam.", "literatura del xi 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 del x 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 del x 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 del x islam.\"))))".
• Removing quotes may allow a broader search: (( literatura breve de isaac. ) or ((( literatura des x islam. ) OR ( literatura del x islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve de isaac.") or ((("literatura des x islam.") OR ("literatura del x islam."))))*.