Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura del de isaac.", "literatura e de isaac."
"literatura en un islam." » "literatura espana un islam.", "literatura en el islam.", "literatura en e islam.", "literatura en al islam."
"literatura de del islam." » "literatura de el 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 breve de isaac.") or ("literatura de del islam."))) or ("literatura en un islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura breve de isaac.") OR ("literatura de del islam."))) OR ("literatura en un islam.")).
• Removing quotes may allow a broader search: (((( literatura breve de isaac. ) or ( literatura de del islam. ))) or ( literatura en un islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura breve de isaac.") or ("literatura de del islam."))) or ("literatura en un islam."))*.