Link: The ProductCritic Blog: Get Full Referral URL's Despite Using Analytics.
We could check the server logs, but if you don't have access to them, there's an easier way.....sign on and use HitTail.com. It's an awesome free service and although most people use it primarily for keyword suggestions, the tool gives you every referral URL in full detail. Since it also does this for searches, you can click on the links that HitTail.com gives you to exactly reproduce the searches that people use (including ones from localized versions of Google).
Note that we're not affiliated in any way with HitTail.com....it's just a great FREE tool that everyone who's serious about tweaking their site for optimal revenue should use.