Perhaps you should try some spelling variations:
"klein primer" » "klein prime", "klein daimler", "klein kramers", "klun primer", "klelm primer", "kles6 primer"
"klein crime" » "klein prime", "klein carina"
"ein primer" » "un primer", "elm primer", "es6 primer"

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 crime") OR ((("klein primer") OR ("ein primer")))).
• Removing quotes may allow a broader search: (( klein crime ) or ((( klein primer ) or ( ein primer )))).
• Adding a wildcard symbol may retrieve word variants: (("klein crime") or ((("klein primer") or ("ein primer"))))*.