Perhaps you should try some spelling variations:
"karl mayer" » "carl mayer", "karl magers", "karl may's", "karl marxer", "karl aer", "karl mer"
"karl mays" » "karl may's", "karl marx", "karl aus", "karl marxs", "karl as", "karl ms"
"karl marc" » "karl marx", "karl maria"
"karl may" » "karl marx", "karl a", "karl m"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("karl mays") OR ("karl mayer"))) OR ((("karl may") OR ("karl marc")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"karl mays\") OR (\"karl mayer\"))) or (((\"karl may\") or (\"karl marc\"))))".
• Removing quotes may allow a broader search: (((( karl mays ) OR ( karl mayer ))) or ((( karl may ) or ( karl marc )))).
• Adding a wildcard symbol may retrieve word variants: (((("karl mays") OR ("karl mayer"))) or ((("karl may") or ("karl marc"))))*.