Perhaps you should try some spelling variations:
"literatura o de islas." » "literatura e de islas.", "literatura a de islas.", "literatura _ de islas.", "literatura o e islas.", "literatura o de isla.", "literatura o de isaias.", "literatura y de islas."
"literatura de de islam." » "literatura de del islam.", "literatura de de isla.", "literatura de e islam.", "literatura de di islam."
"literatura de fe islam." » "literatura de e 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 o de islas.") or ((("literatura de de islam.") OR ("literatura de fe islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura o de islas.") OR ((("literatura de de islam.") OR ("literatura de fe islam."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura o de islas.\") or (((\"literatura de de islam.\") OR (\"literatura de fe islam.\"))))*".
• Removing quotes may allow a broader search: (( literatura o de islas. ) or ((( literatura de de islam. ) OR ( literatura de fe islam. ))))*.