Perhaps you should try some spelling variations:
"little groups" » "simple groups", "pile groups", "little goodys", "little greens"
"elite groups" » "like groups", "line groups", "finite groups"
"little group" » "little goody", "little green"
"life groups" » "like groups", "life group", "line groups"
"lie groups" » "like groups", "live groups", "line groups"

Try widening your search to All Fields.

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