I haven't really said to use Google/forum search to find referral links this way because it's incredibly inaccurate. However, I have suggested using the CTRL+F on the patrol page for it as that has seemed to work for me. I also included that r= is a good way of spotting whether a link is a referral link. But, unfortunately there's many different identifiers for referral links. However, I'm struggling at the moment to come up with a way to precisely explain how they would look. For example, a ref link might be Bitcointalk.org/1646356. There's no real universal way to search for referral links via a search engine/forum search because of the varying identifiers.