Please update search to work as “contains all words”.
That means, when you have device “Kitchen Main Light”, and you search for “kitchen light” on devices page (/config/devices/dashboard), it finds it. Which it currently doesn’t, because it searches on the string as whole, not splitting it by spaces. The same when you edit automation and search for entity to add to action. Again, currently you have to search by the exact entity name, instead of by words.
Each word should be searched as “starts with”, so then when you search for “kit li”, it will find “Kitchen Main Light” too. And when, in automations page, you search for “bath clo”, it will find “Bathroom - Lights on Door Close”.