How does the Search Interface actually work?

How does the Search Interface actually work?

I am new to the Zoho Developer community, I have a background in scripting although HTML is not my strong point at all. I am trying to create a Search interface and am following the relevant Help options that Zoho have available ( https://help.creator.zoho.com/Creating-a-Search-Interface.html and https://help.creator.zoho.com/Create-HTML-Views.html) but it is getting me absolutely nowhere. The templates they have available in the HTML views are so confusing and I am just stuck!

All I want to do is create a search where the user can search by multiple fields ( name, code, company name etc)

Please can someone help me?!