Perhaps you should try some spelling variations:
rawson edward » lawson edward, branson edward, mason edward
manson edward » evanson edward, pearson edward, tenison edward
dawson edward » lawson edward, dobson edward, mason edward
john dawson » john lawson, john davison

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: (( john ((rawson edward) OR (manson edward)) ) OR ( john dawson edward )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( john ((rawson edward) OR (manson edward)) ) or ( john dawson edward ))".
• Adding a wildcard symbol may retrieve word variants: (( john ((rawson edward) OR (manson edward)) ) or ( john dawson edward ))*.