Perhaps you should try some spelling variations:
"edwards david choice based" » "edwards d.d choice based", "edwards davis choice based", "edwards david's choice based", "edwards avoid choice based"
"towards a choice based" » "towards _ choice based"

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: (("edwards david choice based") OR ("towards a choice based")).
• Removing quotes may allow a broader search: (( edwards david choice based ) or ( towards a choice based )).
• Adding a wildcard symbol may retrieve word variants: (("edwards david choice based") or ("towards a choice based"))*.