At Bing we’re committed to delivering you the best possible results. While teams of researchers, machine learning experts and data miners continually improve our core spelling and ranking components, the reality is that some defects have historically slipped through the cracks.
Bing show some examples of their quality search with comparison with previous search results in this image [bing.com ]
Another example applies to machine learning models that would consider a query like “facebook login.com” to be equivalent to “facebooklogin.net” even though people’s usage patterns indicate that’s not the intended query. It’s very common for people to type a “.com” when they want a “.net” or “.org” domain.