Hi Ralph,
No need to feel embarrassed at all. I got different results between using my phone and my desktop and then my phone again, so I suspect that it's a dynamic algorithm of some kind.
For the 404 not founds, it may be that I truncated too much off the link as it appeared in my browser (there's usually some "trailing" info on those and I try to cut off the unnecessary stuff). Sorry for the confusion there.
So here are some more that I found with the complete links
https://www.jwpepper.com/Into-the-Bl...9.item#/submit
https://www.sheetmusicdirect.com/en-...=space%20force
https://www.jwpepper.com/Into-the-Bl.../11371144.item
https://www.sheetmusicplus.com/en/pr...-21786473.html
Enjoy!
Sherry