Perhaps you should try some spelling variations:
"literatura alemana e islam." » "literatura espana e islam.", "literatura castellana e islam.", "literatura colombiana e islam.", "literatura alemana de islam.", "literatura alemana en islam.", "literatura alemana el islam.", "literatura alemana e islas.", "literatura alemana del islam."
"literatura wa al islam." » "literatura a al islam.", "literatura de al islam.", "literatura en al islam.", "literatura wa el islam.", "literatura wa del islam.", "literatura va al islam.", "literatura wa l islam."
"literatura y al islam." » "literatura y el islam.", "literatura y del islam.", "literatura y a islam."

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