Perhaps you should try some spelling variations:
"werner von siemens ingoe" » "weiber von siemens ingoe" (Expand Search), "werner von siemens ingo" (Expand Search), "werner von siemens inge" (Expand Search)
"werner von siemens ging" » "weiber von siemens ging" (Expand Search), "werner von siemens ing" (Expand Search)
"werkes von siemens ingooe" » "wirken von siemens ingooe" (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: (((("werner von siemens ingoe") OR ("werkes von siemens ingooe"))) OR ("werner von siemens ging"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"werner von siemens ingoe\") OR (\"werkes von siemens ingooe\"))) OR (\"werner von siemens ging\"))".
• Removing quotes may allow a broader search: (((( werner von siemens ingoe ) OR ( werkes von siemens ingooe ))) OR ( werner von siemens ging )).
• Adding a wildcard symbol may retrieve word variants: (((("werner von siemens ingoe") OR ("werkes von siemens ingooe"))) OR ("werner von siemens ging"))*.