Perhaps you should try some spelling variations:
"robert richardson" » "robert wichard", "robert riceardson", "robert richardardson", "robert nicholardson"
"robert riceardson" » "robert rickards", "robert robertson", "robert richard"
"robert price" » "robert pringle", "robert payne", "robert pye"
"robert rich" » "robert rice", "robert richard", "robert nichol"

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