Hello. That is because it is a auto-complete search field. If you search for something that does not exist, nothing will happen. If you type for example "Krak", you will get auto-complete suggestion for "Kraken".
Maybe it would be an idea to show a message like "No results..." if what the user types does not return any matches in this search function?
Maybe it would be an idea to show a message like "No results..." if what the user types does not return any matches in this search function?