Perhaps you should try some spelling variations:
"klein kramers" » "klein kafer", "klein parameters"
"klein primer" » "ein primer", "klein daimler", "klein peter"
"klein price" » "klein erich", "klein ulrich"
"klein crime" » "klein carina"

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: (((((("klein prime") OR ("klein crime"))) OR ("klein price"))) OR ((("klein primer") OR ("klein kramers")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"klein prime\") OR (\"klein crime\"))) or (\"klein price\"))) or (((\"klein primer\") or (\"klein kramers\"))))".
• Removing quotes may allow a broader search: (((((( klein prime ) OR ( klein crime ))) or ( klein price ))) or ((( klein primer ) or ( klein kramers )))).
• Adding a wildcard symbol may retrieve word variants: (((((("klein prime") OR ("klein crime"))) or ("klein price"))) or ((("klein primer") or ("klein kramers"))))*.