At least, that's how it seemed to me for ages when I switched from Firefox. I mean, I would have just visited a page with "foo" in the URL, and I would type "foo", and that recent page simply would not appear. But a page I visited two months ago with "foo" somewhere in the URL (or worse, somewhere in the page content) would appear.
I haven't noticed this so much recently -- maybe it's gotten better, or maybe I've just gotten used to it.
I've been shocked that I haven't heard many other people complaining about this. Maybe it's just me?