First thing you have to do to change the Clerk Live-Search, after the first data sync has run successfully, is to go into your DanDomain backend, choose Clerk under Shortcuts to Apps and login to the Clerk plugin:
After successful login, scroll to the field called "Live Search Settings". In that field, you have full control of how many suggestions, categories and pages the Live-Search displays, as seen below:
To make the changes take effect, scroll to the top of the page and press Save: