Perhaps you should try some spelling variations:
christian friend » christian friends, christian science, christian france
christian scheme » christian society, christian schmidt, christian scholar
friedrich krauss » friedrich krause, friedrich strauss, friedrich gauss

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: "((((((christian friend) OR (christian scheme))) OR (christian faith))) OR (sebastian ferdinand)) friedrich krauss".
• Adding a wildcard symbol may retrieve word variants: ((((((christian friend) OR (christian scheme))) OR (christian faith))) OR (sebastian ferdinand)) friedrich krauss*.