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