Perhaps you should try some spelling variations:
christian fernandez » christina fernandez, cristina fernandez, christian france
friedrich krauss » friedrich krause, friedrich friess, friedrich kobus
friedrich klaus » friedrich krause, diedrich klaus, friedrich kobus
friedrich gauss » friedrich august

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: ((christian fernandez) OR (sebastian ferdinand)) ((((friedrich krauss) OR (friedrich klaus))) OR (((friedrich strauss) OR (friedrich gauss)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((christian fernandez) or (sebastian ferdinand)) ((((friedrich krauss) or (friedrich klaus))) or (((friedrich strauss) OR (friedrich gauss))))".
• Adding a wildcard symbol may retrieve word variants: ((christian fernandez) or (sebastian ferdinand)) ((((friedrich krauss) or (friedrich klaus))) or (((friedrich strauss) OR (friedrich gauss))))*.