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