Perhaps you should try some spelling variations:
wilson davies » wilson david, wilson daniel, gilson david
picton davies » hector davies, doctor davies
simon davies » simon david, simon dawes, ian davies
own simon » down simon, brown simon, john simon

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: (( own ((picton davies) OR (wilson davies)) ) OR ( own simon davies )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( own ((picton davies) OR (wilson davies)) ) or ( own simon davies ))".
• Adding a wildcard symbol may retrieve word variants: (( own ((picton davies) OR (wilson davies)) ) or ( own simon davies ))*.