@jsn
2.7.13 polluted the download mesh with expired alternate locations (that could be weeks old). It didn't handle http download requests properly and all new ultrapeers (2.9.8+) will send you only half the number of results because they disadvantage old limewire clients.

@Norm
Make sure that you are not only using version 3.2 but that you are connected to 3.2 ultrapeers.