Perhaps you should try some spelling variations:
"kranken allgemeine" » "kranken allgemeiner", "krankem allgemeines", "krane allgemeine"
"banken allgemeine" » "denken allgemeine", "basen allgemeine", "becken allgemeine"
"deren allgemeine" » "denken allgemeine", "energien allgemeine", "tumoren allgemeine"

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