This is something that Google can do for any search result. Google "knows best" and assigns whatever title to the records it thinks makes the most sense. There's not much that you (or we) can do to control it. You might reach out to Google support if you'd like them to do an update (though I'm guessing that may not help).
Here's a related article on the matter describing partially what they're doing:
And here's a doc directly from Google:
One thing you might consider that could help is changing your domain name to be a bose.com subdomain (e.g. community.bose.com) which may help Google more accurately attribute the content and derive appropriate titles. As it stands right now, since bose.infopop.cc really has no affiliation with bose.com, it likely can't make any formal connection.
If you are interested in making a domain name change, just let us know! We charge a $90 domain name change fee, and as part of that, we will set up 301/permanent redirects from the old bose.infopop.cc to the new domain name that you choose.
Hope this helps!