I'm a Romanian and speaking from personal experience, they are much, much worse.

For example I just searched for "restaurante" (the Romanian word for "restaurants"). Google gives me nearby restaurants in Google Maps plus links to Romanian guides to restaurants, whereas Yahoo is giving me the Spanish Wikipedia page for the Spanish definition as the first result (WTF!) and the results are complete bullshit. And look, DuckDuckGo is also returning the same bullshit (yes, even with regional searches turned on, I still get Spanish results): https://duckduckgo.com/?q=restaurante

I could think of other blunders, as whenever I tried using alternatives it's been very painful for me (i.e. fixing the individual example above won't solve my needs) and Google is also often able to infer what I want based on my profile. For example when I search for Ruby I get a different set of results than my wife does ;-)

You can say what you want about Google's privacy invading tactics, but their search results are really the best and if people wonder why they have a monopoly in search, well this is why.

Pretty terrible. I made an effort to try Bing and ddg a while back, and while it was good enough for searching for English language sites using English words, it fell down heavily when searching in Swedish.

I think the problem isn't just crawling, it's parsing. Google does a lot of clever stuff where it tries to understand the site and handle things like alternate spelling, synonyms and typos. From what I've seen Bing at least is far behind on this front for non-english sites and I don't know if they're even really trying.

As most others, I mostly use search when I know where I want to end up, but can't be bothered clicking my way there. German Bing just doesn't show the relevant results on top, so the effect of saving time by using search is lost. I doubt it doesn't have the right sites indexed, it's just bad performance in delivering at the right time. At least in my case.

I don't like the French version of Bing. One of the reasons is that it assumes I'm monolingual. Like, if I search for a film, I'll get the result for Allociné instead of IMDb. I much prefer IMDb.