About Direct Hits
Direct hits let you redirect a customer to a specified URL when the customer searches for a matching term. This kind of functionality lets you improve the navigation of the search of your website.
About Pre-Search Rules
Use Pre-Search Rules to analyze the incoming query and determine which presentation template to use. Pre-Search Rules are executed in sequence for every query. To alter the order of your rules you can use drag-and-drop. The actual order does not change until you save it.
About Post-Search Rules
You can use Post-Search Rules to examine the results of a search and determine how the search affects the displayed content.