Perhaps you should try some spelling variations:
"karl friedrich goerdeler" » "fur friedrich goerdeler" (Expand Search), "halm friedrich goerdeler" (Expand Search), "karl dietrich goerdeler" (Expand Search)
"heer friedrich goerdeler" » "georg friedrich goerdeler" (Expand Search)
"la friedrich goerdeler" » "lotz friedrich goerdeler" (Expand Search), "rub friedrich goerdeler" (Expand Search), "glogau friedrich goerdeler" (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: (("karl friedrich goerdeler") OR ((("la friedrich goerdeler") OR ("heer friedrich goerdeler"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"karl friedrich goerdeler\") OR (((\"la friedrich goerdeler\") OR (\"heer friedrich goerdeler\"))))*".
• Removing quotes may allow a broader search: (( karl friedrich goerdeler ) OR ((( la friedrich goerdeler ) OR ( heer friedrich goerdeler ))))*.