Perhaps you should try some spelling variations:
"literature arab de isaac." » "literatura arabe de isaac.", "literature early de isaac.", "literatura para de isaac.", "literature arabe de isaac.", "literature aras de isaac.", "literature arabes de isaac."
"literatura en de islam." » "literatura espana de islam.", "literatura en del islam.", "literatura en de isla.", "literatura en e islam."
"literatura de si isaacm." » "literatura de su isaacm.", "literatura de mi isaacm."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura de si isaacm.") or ("literatura en de islam."))) or ("literature arab de isaac."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de si isaacm.") OR ("literatura en de islam."))) OR ("literature arab de isaac.")).
• Removing quotes may allow a broader search: (((( literatura de si isaacm. ) or ( literatura en de islam. ))) or ( literature arab de isaac. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura de si isaacm.") or ("literatura en de islam."))) or ("literature arab de isaac."))*.