Perhaps you should try some spelling variations:
"halm friedrich goerdeler" » "heer friedrich goerdeler" (Expand Search), "karl friedrich goerdeler" (Expand Search), "m friedrich 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 (\"halm friedrich goerdeler\"))) OR (\"lotz friedrich goerdeler\"))~".
• Removing quotes may allow a broader search: (((( la friedrich goerdeler ) OR ( halm friedrich goerdeler ))) OR ( lotz friedrich goerdeler ))~.
• Adding a wildcard symbol may retrieve word variants: (((("la friedrich goerdeler") OR ("halm friedrich goerdeler"))) OR ("lotz friedrich goerdeler"))*.