Check out this thread over in the lj_nifty topic on this. It's possible that some LJ clients post things as public first and then friends-lock it as a second step. Since the Blog search is an RSS feed, it will pick up every public post.
I checked the Google site for my own locked posts and found nothing. The only client I use is Semagic for Windows.
I checked the Google site for my own locked posts and found nothing. The only client I use is Semagic for Windows.