I performed the following library searches:-
subject:"bible indexes" OR title:topic,nave,treasury ANDNOT (illustrations,images,homiletical)
type:commentary (title:john, subject:john) -subject:("1 John", "2 John", "3 John", "John, 1st", "John, 2nd", "John, 3rd", revelation, "epistles of john")
and got the message below.

The log shows a LOT of collection search activity around these library searches. What is happening?
http://community.logos.com/cfs-file.ashx/__key/CommunityServer.Discussions.Components.Files/78/3833.Logos4Catalog.zip