For Kagi, I've got it set to give me international results, so technical documentation is in English, but I have to manually change the region to my country for local results - thankfully that's just a dropdown on the same page that remembers your recent country choices.
Sadly your incantation fails for me - I've been fighting this issue for years.
If I copy and paste your search-link but change the word from "hedgehog" to äiti I get back a page of Finnish results.
This drives me mad when I'm searching for a Finnish street-name, or store-brand. My account is setup in English, my browser accept-language headers are English and yet it will constantly decide to switch to Finnish for me. (Except for google maps which will universally show street-names in Swedish. Scream.)
Sometimes I get a "switch to English" link, sometimes I do not. Half the time that takes me to a settings page with a progress of "Saving" which does nothing, and half the time it redirects me back to English search results.
Google's approach to language has literally no rhyme or reason, and breaks on a daily basis for me. But I guess it is what it is, and I continue to put up with it for the times I use it.
For Kagi, I've got it set to give me international results, so technical documentation is in English, but I have to manually change the region to my country for local results - thankfully that's just a dropdown on the same page that remembers your recent country choices.