that is unusual but not surprising. Every time you connect you access a different part of the network. Different parts of the world are dominant at different times, etc, etc. Too, the longer you have been running a search the more chances it's being extended.

Still, keep an eye on your connections pane and how long/quickly you connect to other hosts. If the connections are unstable that may indicate looking at your configuration.

Cheers

btw, if suddenly I see few or unstable connections, this usually means my ISP is trying to manage gnutella connections and all I can do is switch to the competition.