Hello.
Use "ES Search module" for searching 2 words with space.

It works normal with english words (I test it on demo site with "Nelly Furtado" words and on my site), but doesn't work with russian.

Example 1 when everything is OK:
1) type "убили негра" in "ES Search module"
2) wait for suggeste search result and chose "убили негра"
3) click on "View all results"
Result1: you will be redict to https://crimson-land.ru/search?q=убили%20негра page with few results. Search field display "убили негра". Its works OK.

Example 2 when something gone wrong:
1) type "убили негра" in "ES Search module"
2) press Enter button
Result2: you will be redict to https://crimson-land.ru/search?q=убили%2520негра page with few results. Search field display "убили%20негра". And no results.

Example 3:
1) Don't use "ES Search module"
2) Navigate to "ES Smart Search" menu item: https://crimson-land.ru/search
3) type "убили негра" and search
Result3 = Куыгде2:you will be redict to https://crimson-land.ru/search?q=убили%2520негра page with few results. Search field display "убили%20негра". And no results.

Thanks.