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 der deutschen literature series", "studie fur deutsche literature series", "studie des deutschen literature series", "studien zur deutschen literature series", "studien zu deutschen literature series"
"studien zum deutschen literacy survey" » "studien zum deutschen literatur survey", "studien zum deutsche literatur survey", "studien im deutschen literacy survey", "studien der deutschen literacy survey", "studien des deutschen literacy survey", "studien zur deutschen literacy survey", "studien zu deutschen literacy survey"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("studien zum deutschen literacy survey") or ("studie zur deutschen literature series"))~.
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