The trick XoloX pulls is sending queries over and over to try to get more "hits".
People think thats great, but it will take down the network if enough clients do it.
It takes a average of about 120 seconds for all results to come back once you send a search request.
Sending it again down the same path wastes bandwidth.
The path changes a bit over time, and repeating a search after 300 seconds may be OK.
If you connect to a new node, you may want to send the search down that path, so holding a search would be a nice thing to do.
Make sure your code stops search queries that repeat less than 300 seconds apart.