There are two ways to use Chrome store. You can either browse through the categories or use the search bar to find what you're looking for.
If you're looking for something specific, the best way to find it is to use the search bar. Simply type in what you're looking for and press enter. This will bring up a list of results for you to choose from.
If you're not sure what you're looking for, you can browse through the different categories. To do this, simply click on the category you're interested in. This will bring up a list of all the apps and extensions available in that category.