Two guys walking door to door?

On Thursday night, 2 young guys between the ages of 18 and 22 rang my bell and asked for money for their soccer team's trip to Holland. They said that it was on the paper and they are lo cater on Cedar Rd, close to here. We didn't give any money and immediately went online to look for Cedar Rd... nothing even close with that name is around here.... Have any of you had these 2 guys knocking on your door? Do you know if this is legitimate or are they surveying the area and choosing which houses to rob?