Perhaps you should try some spelling variations:
"der sozialwissenschaft" » "der sozialwissenschaften", "fur sozialwissenschaftler"
"der sozialwissenschaftlichen" » "der sozialwissenschaftenlichen", "fur sozialwissenschaftlerlichen", "der sozialwissenschaften"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"der sozialwissenschaft\") OR (\"der sozialwissenschaftlichen\"))".
• Removing quotes may allow a broader search: (( der sozialwissenschaft ) OR ( der sozialwissenschaftlichen )).
• Adding a wildcard symbol may retrieve word variants: (("der sozialwissenschaft") OR ("der sozialwissenschaftlichen"))*.