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