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How should I handle search engines auto-correcting the spelling of a site's name?

My domain name is radiuus.com. Since the correct spelling of the word is with one u, when I search for "radiuus" on google it thinks I'm misspelling the word, kindly lets me know, and returns results for "radius".

Example: https://www.google.com/search?q=radiuus&oq=radiuus&sugexp=chrome,mod=2&sourceid=chrome&ie=UTF-8

What can I do to prevent this? And taking this one step further: what can I do to get my site to show up when someone searches for "radius" spelled the correct way?

Thanks!!