Perhaps you should try some spelling variations:
literatura breve » literatura de, literatura del, literatura e
literatura en » literatura de, literatura espana
breve en » breve del, breve de, breve y
en islam » el islam, e islam, un islam
de islas » de isla, de islam, de isaias
e islas » el islam

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: "((\"literatura breve en islam.\") or (\"literatura en ((de islas) OR (e islas)).\"))~".
• Removing quotes may allow a broader search: (( literatura breve en islam. ) or ( literatura en ((de islas) or (e islas)). ))~.