Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura de de isaac.", "literatura en de isaac."
"literatura del de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del dean isaac."
"literatura e y islam." » "literatura de y islam.", "literatura en y islam.", "literatura e e islam.", "literatura e _ islam.", "literatura e el islam.", "literatura fe y islam.", "literatura es y islam."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura e y islam.") or ((("literatura breve de isaac.") OR ("literatura del de isaac."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura e y islam.") OR ((("literatura breve de isaac.") OR ("literatura del de isaac.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura e y islam.\") or (((\"literatura breve de isaac.\") OR (\"literatura del de isaac.\"))))".
• Removing quotes may allow a broader search: (( literatura e y islam. ) or ((( literatura breve de isaac. ) OR ( literatura del de isaac. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura e y islam.") or ((("literatura breve de isaac.") OR ("literatura del de isaac."))))*.