Perhaps you should try some spelling variations:
"praktische philosophical" » "practice philosophical", "praktischen philosophie", "practical philosophical"
"praktischer philosophie" » "praktischen philosophie", "politischer philosophie", "analytischer philosophie"
"praktische philosophie" » "politische philosophie"

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("praktische philosophie") OR ((("praktische philosophical") OR ("praktischer philosophie")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"praktische philosophie\") or (((\"praktische philosophical\") OR (\"praktischer philosophie\"))))".
• Removing quotes may allow a broader search: (( praktische philosophie ) or ((( praktische philosophical ) OR ( praktischer philosophie )))).
• Adding a wildcard symbol may retrieve word variants: (("praktische philosophie") or ((("praktische philosophical") OR ("praktischer philosophie"))))*.