Specify the search criteria to be used when generating the menu element. You can limit the search according to the properties of content items including authoring templates, site areas, categories, and keywords.
Between different criteria, menu searches are "and" searches, but within each search criteria, menu searches are "or" searches. For example, a menu element that searches for two different categories and an authoring template will display content items profiled with at least one of each profile type. Content that matches only one profile type are not displayed.
Menus will not display search results if you select a search criteria but do not enter any search parameters. For example, if the menu is configured to display results based on categories, but no categories are specified in the menu form, then no matches are displayed.