I have the reverse problem: Google would happily return me Polish-language results for everything, where I almost never want that. For the types of searches I do, there's almost never anything worthwhile in my native language. This, + their annoying attempt at detecting which country I'm in (so I would get German results when in Germany, and Chinese results when in China) led me one day to figuring out the magic URL incantation to force English results, and replacing the search in omnibar with that.
I don't have the original anywhere; I used it exclusively on my work laptop two jobs back, which was the only one that moved internationally somewhat frequently (for the rest of my machines, I clicked around Google settings until I got English-language results and that usually stuck). But I think it was https://google.com/search?hl=en&q=%s.
