Read your original post. As far as I understand you are saying these two things: 1. Yandex search results very closely match DDG's in Ukrainian (or did) as opp

Read your original post. As far as I understand you are saying these two things: 1. Yandex search results very closely match DDG's in Ukrainian (or did) as opposed to Google/Bing 2. When Yandex could no longer operate in Ukraine, DDG's region for Ukraine disappeared I am reminded of Hanlon's Razor in this situation, that perhaps in Ukraine they simply did not fix their search after their top index provider was blocked.