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