Does anyone have a good tutorial for understanding how to make a database and link it with a searchbar

Does anybody have a tutorial or wants to explain to me how to make a functional search bar? I have designed but I can t find any piece of information on the internet on how to make a functional search bar for an ecommerce type of website. I need to search for the names of the products and display the image, title and price of it. I have all the code for the website, but I can find my way around this problem. Thank you!