You can disable Smart Filtering in the screen options menu (top right on overview page), but this is a user preference only. If you want to disable it for all users and in general, you can use the following hook in your theme:

add_filter( 'acp/search/is_active', '__return_false' );

In the next version of Admin Columns, it will be possible to manage this on the settings screen for every list screen. Let me know if you have any further questions.