Perhaps you should try some spelling variations:
"grundlehren des editions" » "grundlehren der editions", "grundlagen des editions", "grundlinien des editions", "grundlehren les editions", "grundlehren best editions", "grundlehren des editors"
"grundlehren des additions" » "grundlehren der additions", "grundlagen des additions", "grundlinien des additions", "grundlehren ms additions"

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"grundlehren des editions\") OR (\"grundlehren des additions\"))".
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