Perhaps you should try some spelling variations:
"robert richardson" » "robert wichard", "robert priceardson", "robert richardardson", "robert nicholardson"
"robert rich" » "robert price", "robert richard", "robert nichol"
"robert rice" » "robert price", "robert rae", "robert rene"

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: (((("robert rich") OR ("robert rice"))) OR ("robert richardson")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"robert rich\") OR (\"robert rice\"))) or (\"robert richardson\"))".
• Removing quotes may allow a broader search: (((( robert rich ) OR ( robert rice ))) or ( robert richardson )).
• Adding a wildcard symbol may retrieve word variants: (((("robert rich") OR ("robert rice"))) or ("robert richardson"))*.