They appear to be listed sorted by reverse node_id, but I seriously doubt they are searched that way. In SQL terms, I think there's one of

   SELECT ... LIMIT 50

   SELECT ... ORDER BY node_id LIMIT 50
[download]

with perhaps a sort done in Perl, but not

   SELECT ... ORDER BY node_id DESC LIMIT 50
[download]

which in that case would likely fix it. (I'm not pmdev, so I have no access to the actual source, so I'm just guessing.)

For example, a search for List of Lists shows 128632 at the top, and 17802 at the bottom. That's nowhere near the 350865 for the node (list of lists (LOL)) I was actually looking for.

As an aside, note that my search term is actually part of the node title, which is not the case for any of the results shown.