Hello,
The Refine Search Results option allows you to refine your search by setting a number of limiting factors, such as Search Method, Branch, Year of Publication range, Publisher and Place of Publication, Author and one or more Material Types and/or Collection Types.
As you can see, this is very site-related. Library-sites would use "Publisher", "Author", ...
while your "poperty-for-sale" example-page uses "min / max prices", "number of room", ...
There is no general way to do that - so it's up to you to add such functionality to your site.
thorn.