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