Analytical search – when you construct a query to get an answer. How to reduce cost per click on facebook advertisements? This type of search results in multiple possible answers. So it takes effort from the user to run such a search. User exactly needs to know what to search for.
Browse search is just scanning a result set for relevant information like the one you use in ecom websites when you buy a product. Example if you are looking for a mobile under $500, you can get a list of matching results. This is a browse as the user only scans through a list.