Let's say my company's site is www.company.com. If you search our company name in Bing, you get results for pages on www.company.com, but some results have a URL that includes a subdomain like "blog.company.com/somepage" instead of the default "www". I believe in Google Webmaster tools you can tell the search engine to see "*.company.com" as being the same as "www.company.com", but I can't seem to find a similar option in Bing's Webmaster Tools.
Edit: Just to be clear, the correct URL for the page is "www.company.com/somepage", but for some reason it's showing up in Bing as "blog.company.com/somepage". Also, this problem is happening in Bing, but not in Google - which is why I'm asking if there's something I need to fix in Bing's webmaster tools.