Perhaps you should try some spelling variations:
"wiesel von siemens ringo" » "wieder von siemens ringo" (Expand Search), "wiesel von siemens ingo" (Expand Search)
"kandel von siemens rging" » "kunde von siemens rging" (Expand Search), "kinder von siemens rging" (Expand Search)
"weiber von siemens inge" » "weiber von siemens ingo" (Expand Search), "weiber von siemens ing" (Expand Search)

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: "((((\"wiesel von siemens ringo\") OR (\"kandel von siemens rging\"))) OR (\"weiber von siemens inge\"))~".
• Removing quotes may allow a broader search: (((( wiesel von siemens ringo ) OR ( kandel von siemens rging ))) OR ( weiber von siemens inge ))~.
• Adding a wildcard symbol may retrieve word variants: (((("wiesel von siemens ringo") OR ("kandel von siemens rging"))) OR ("weiber von siemens inge"))*.