Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura en de isaac.", "literatura del de isaac.", "literatura e de isaac."
"literatura des x islam." » "literatura del x islam.", "literatura es x islam.", "literatura desde x islam.", "literatura des e islam.", "literatura des _ islam.", "literatura des el islam.", "literatura de x islam."
"literatura de ix islam." » "literatura de el islam.", "literatura de e islam.", "literatura de al islam.", "literatura de ie islam.", "literatura de i_ islam.", "literatura de iel islam.", "literatura de ir islam.", "literatura de ex islam.", "literatura de ia 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 de ix 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 de ix islam.")))).
• Removing quotes may allow a broader search: (( literatura breve de isaac. ) or ((( literatura des x islam. ) or ( literatura de ix islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve de isaac.") or ((("literatura des x islam.") or ("literatura de ix islam."))))*.