I wish Google catered to user preferences in this.
I am from Spain, but often strongly prefer to search for stuff in English (for example for news, as I want to avoid the hyperpartisan Spanish media). No matter what I do: even if I have the browser configured in English, Google configured to use English, and I go to google.co.uk instead of google.es, I type e.g. "Trump" in the search box and most of the results are in Spanish. I do get some English results, but on page 2.
The world is multilingual, actually there are estimates that over 50% of the world population is at least bilingual (even if this is not the case in the US, where the proportion is about 25%). You have an awesome search engine, is it that hard to add an option to choose the language or languages in which to search (possibly changing between searches, as we actually use different languages for different stuff, e.g. I teach in Spanish but do research in English) and then showing results in those languages unbiased by language?
PS: funnily enough, I see this particular page about the gnome in English.