Perhaps you should try some spelling variations:
"studie zur deutschen literature series" » "studie zur deutschen literatur series", "studie zur deutsche literatur series", "studie zur deutschland literatur series", "studie zur deutschen literature survey", "studie zum deutschen literature series", "studie der deutschen literature series", "studie fur deutsche literature series", "studien zum deutschen literature series", "studien zu deutschen literature series"
"studien zur deutschen literacy survey" » "studien zur deutschen literatur survey", "studien zur deutsche literatur survey", "studien zum deutschen literacy survey", "studien der deutschen literacy survey", "studien fur deutsche literacy survey", "studies zur deutschen literacy survey"

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