Perhaps you should try some spelling variations:
"weber von siemens fing" » "weiber von siemens fing" (Expand Search), "wieder von siemens fing" (Expand Search), "leben von siemens fing" (Expand Search)
"gert von siemens fing" » "gebet von siemens fing" (Expand Search), "welt von siemens fing" (Expand Search), "zeit von siemens fing" (Expand Search)
"zeit vor siemens fing" » "zeit von siemens fing" (Expand Search), "zeit der 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: (("weber von siemens fing") OR ((("gert von siemens fing") OR ("zeit vor siemens fing"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"weber von siemens fing\") OR (((\"gert von siemens fing\") OR (\"zeit vor siemens fing\"))))*".
• Removing quotes may allow a broader search: (( weber von siemens fing ) OR ((( gert von siemens fing ) OR ( zeit vor siemens fing ))))*.