Perhaps you should try some spelling variations:
"klein primer" » "klein daimler", "klein kramers", "klein peter", "klun primer", "kle primer", "kleda primer", "klein pricer", "klein crimer"
"ein primer" » "un primer", "e primer", "eda primer", "ein pricer", "ein crimer"
"klein prime" » "klein price", "klein crime"

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