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)
"lotz friedrich goerdeler" » "glogau friedrich goerdeler" (Expand Search)
"la friedrich goerdeler" » "rub friedrich goerdeler" (Expand Search), "glogau friedrich goerdeler" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"la friedrich goerdeler\") OR (\"karl friedrich goerdeler\"))) OR (\"lotz friedrich goerdeler\"))~".
• Removing quotes may allow a broader search: (((( la friedrich goerdeler ) OR ( karl friedrich goerdeler ))) OR ( lotz friedrich goerdeler ))~.
• Adding a wildcard symbol may retrieve word variants: (((("la friedrich goerdeler") OR ("karl friedrich goerdeler"))) OR ("lotz friedrich goerdeler"))*.