Perhaps you should try some spelling variations:
"werkes von siemens ing" » "wirken von siemens ing" (Expand Search), "werkes von siemens ingo" (Expand Search), "werkes von siemens inge" (Expand Search)
"weiber von siemens fing" » "weber von siemens fing" (Expand Search), "weiler von siemens fing" (Expand Search), "weiter von siemens fing" (Expand Search), "weiber von siemens fingo" (Expand Search), "weiber von siemens finge" (Expand Search)
"werner von siemens ging" » "werner von siemens gingo" (Expand Search), "werner von siemens ginge" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("weiber von siemens fing") OR ((("werner von siemens ging") OR ("werkes von siemens ing"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"weiber von siemens fing\") OR (((\"werner von siemens ging\") OR (\"werkes von siemens ing\"))))*".
• Removing quotes may allow a broader search: (( weiber von siemens fing ) OR ((( werner von siemens ging ) OR ( werkes von siemens ing ))))*.