Perhaps you should try some spelling variations:
"literature spain _ islam." » "literatura espana _ islam."
"literatura del de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del dean isaac."
"literatura le una idea." » "literatura ele una idea.", "literatura de una idea.", "literatura e una idea.", "literatura le la idea.", "literatura vale una idea."

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 del de isaac.") or ((("literature spain _ islam.") or ("literatura le una idea."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura del de isaac.") OR ((("literature spain _ islam.") OR ("literatura le una idea.")))).
• Removing quotes may allow a broader search: (( literatura del de isaac. ) or ((( literature spain _ islam. ) or ( literatura le una idea. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura del de isaac.") or ((("literature spain _ islam.") or ("literatura le una idea."))))*.