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