Site Config tabs - Integrated search feature

From Jomres v4 manual

You may sometimes see the integrated search feature referred to as mod_jomsearch_m0. This is because it's a modified feature that is configured the same as the other search modules mentioned above, but integrated into Jomres Core for users who either don't want search modules or because they're not using Joomla but still want to offer a search feature.

The options are the same as for the CMS specific search modules, but the template that constructs the module's layout is in /jomres/templates/jomres/frontend and is called search.html.