One of the most important things when having the knowledge base (small or large one) is to make easier for your users to find the information they need. You can use normal search forms, but the plugin has an even better solution that will ensure that results will be delivered quicker and allow users to find what they need without too much waiting.
Live Search can be integrated through functions, custom search form or widget. You can have checkboxes to limit what type of results to search for.
You can set a minimal number of characters to trigger the live search (default is 2). Results can even include bbPress forum topics and replies if you use this plugin too for support.
If you use a normal search button, the plugin will open a new page with search results powered by the plugin with contextual results. The search results page is implemented by the plugin.