Hi!
That search bar uses combination of custom taxonomies and custom fields and filters for them. In WooCommerce you can use the product attributes either in Taxonomy Term filters, or some of them in custom field filters.
In the example the screen size, the refresh rate and the price filters are custom field filters, the rest are taxonomy terms. I also suggest checking the settings box layout/positition and visitiblity documentation.
These should clarify most features about the filters.