Perhaps you should try some spelling variations:
"little groups" » "little group", "simple groups", "pile groups"
"life groups" » "life group", "line groups", "elite 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 ((((("like groups") OR ("little groups"))) OR ("lie groups"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"life groups\") or (((((\"like groups\") OR (\"little groups\"))) or (\"lie groups\"))))*".
• Removing quotes may allow a broader search: (( life groups ) or ((((( like groups ) OR ( little groups ))) or ( lie groups ))))*.