Perhaps you should try some spelling variations:
"weiber von siemens fing" » "weber von siemens fing" (Expand Search), "weiler von siemens fing" (Expand Search), "weiter von siemens fing" (Expand Search)
"werkes von siemens ging" » "werkes von siemens ing" (Expand Search)
"wirken von siemens inge" » "wirken von siemens ingo" (Expand Search), "wirken von siemens ing" (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 ((("werkes von siemens ging") OR ("wirken von siemens inge"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"weiber von siemens fing\") OR (((\"werkes von siemens ging\") OR (\"wirken von siemens inge\"))))*".
• Removing quotes may allow a broader search: (( weiber von siemens fing ) OR ((( werkes von siemens ging ) OR ( wirken von siemens inge ))))*.