Search bar doesn’t work on store list filter

Using the search bar on the store list sidebar doesn’t yield the results that were searched in the first place. For example, see this store called “Cida Modas”: https://imgur.com/a/JH3o50p

While it does exist and it’s showing up, searching for its name in particular doesn’t filter all the rest of the stores.

Shouldn’t the search bar yield only the results which have been typed in?

The page I need help with: [log in to see the link]