Can’t search items by part of word

Hello. I have a problem with smart search. It works only for full word and items can’t be found if I search it by part of the word.

Steps:
1) login to site
2) navigate to smart search section
3) use checkbox on “albums”
4) try to search “car”.
Result (is sample 1): it will search only “car” and will ignore albums with “cars” in title or description.

5) user try to search “vehic”
Result (example 2): it will search only “vehic” and will ignore albums with “vehicle” in title or description.

In my case is:
Search “octopus” in Russia (осьминог):
https://crimson-land.ru/search?q=Осьминог&filtertypes[0]=10454-albums
In result there is no “octopuses”. But it should, I suppose.


Search “octopuses” in Russia (осьминоги):
https://crimson-land.ru/search?q=Осьминог&filtertypes[0]=10454-albums

Thanks.