I am sure you get few results because you don't use Gnucleus properly...like a lot of xolox user didn't understand anything to the network . One button "Connect/disconnect" , that is far enough for their brain .
So let use more neurons now . Go to the " Preferences" panel and on connect tab , change settings (according to your bandwith and the number of answer you wish) : for example "keep at least 5 and a max of 7 connections "(1) and "Drop nodes with less than 200 nodes "(2) .You can increase these settings if you want more results...Wait few seconds and when you are connected to a lot of hosts(1) with a lot of friends (2) (look a the advanced tab of connections , run your search . And now ....what do you think about xolox ?