Perhaps you should try some spelling variations:
"elite groups" » "line groups", "finite groups", "little groups"
"life groups" » "line groups", "five groups", "laue groups"
"like groups" » "large groups", "crime groups"
"lie groups" » "live groups", "line groups"

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: (((((("life groups") OR ("elite groups"))) OR ("life group"))) OR ((("like groups") OR ("lie groups"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"life groups\") OR (\"elite groups\"))) or (\"life group\"))) or (((\"like groups\") or (\"lie groups\"))))*".
• Removing quotes may allow a broader search: (((((( life groups ) OR ( elite groups ))) or ( life group ))) or ((( like groups ) or ( lie groups ))))*.