Perhaps you should try some spelling variations:
"korperverhaltnisse" » "wasserverhaltnisse", "genderverhaltnisse", "agrarverhaltnisse"
"sonderverhaltnisse" » "genderverhaltnisse", "handelsverhaltnisse", "wasserverhaltnisse"
"kraftverhaltnisse" » "krafteverhaltnisse", "krafteverhaltnissen", "krafteverhaltnis"

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