Voice automatically submits new sites and new pages to the major search engines for indexing.

In my experience Bing/Yahoo are quick to add new things - sometimes as little as 10 minutes - though Google is slower.

All you can do is be patient, your new site/content will appear in due course.

Note that I do see it when I search, on duckduckgo, so maybe they're catching up now!

Once it appears you could remove your old site to reduce confusion. Or, better still, configure your Voice site to use your domain name. There are instructions for this in the documentation.

Thanks

Joe