I checked the sitemap_index which leads to the page sitemap.. which does not list those pages.
That’s odd I can see my site being listed at the top of the results page with sub pages.
I can’t add an image here, but when I click on the link the first result is my page, with the subpages of author, home lab, about, networking, cloud, nsx-t.
I didn’t add the stuff on isuu though.