How do you search for an artist (or song) in the Music app??

I am completely lost on how the Music app does a search. I used ITunes for years and am completely perplexed at how to search for an artist or a song in Music. Perhaps I am doing something wrong, but I feel like I need to learn how to double click a mouse again. I've uploaded a video of me doing a search of my Music collection. As you can see it often goes to random places or doesn't show all of the albums. I've found that the small "back arrow" does something... but not sure what. Why does it always pull the Clash? Because they are the only band that matters??

Thanks in advance!!https://www.youtube.com/watch?v=FFxcjjUk1ks