Note: This only affects installations using the ApacheSolr search module as well as Coresearches.

The text filtering wasn't working for me, it would always return "No results found". The Coresearches module patches the Drupal core, which is necessary to fully integrate the ApacheSolr search. Part of this patch removes the node_search function in node.module causing the described problem.

To solve this, around line 192 of nodeadmin.module, I had to change:

$search_data = module_invoke('node', 'search', 'search', $keys);
   to
$search_data = module_invoke('apachesolr_search', 'search', 'search', $keys);

I guess it would be nice to have this automated in some way but it's definitely not part of this modules responsibility. Thanks for a great module by the way, I hope that similar functionality makes it into the Drupal 7 core.