Not sure if this is new advice, but here goes:
To see what hosts are connected, use LW's View menu to turn on "Connections." Then the tab that shows connected hosts should be available.

Hosts can be removed (and new ones should take their place). If some of those hosts are spammers, you'll not get many decent results.

In addition, take a look at the Options for junk filters. See if setting to show all results (including junk) changes the results you see. Just a thought that your junk or keyword filters may be blocking too many results before they show on your screen.