Running Simple Search, with Global Search off. Then search for courses. Wildcards are not supported, courses are not all found.
Also see https://tracker.moodle.org/browse/MDL-70225?focusedCommentId=837748&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-837748
Also see https://tracker.moodle.org/browse/MDL-70225?focusedCommentId=837748&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-837748