I don't. When I google for torrents I usually get a bunch of garbage / ad spam sites which don't actually have the content... so I don't google for torrents.
Besides, if they block pirate bay, it's only a matter of time before most other popular torrent sites are also blocked. Sure mirrors will pop up, but they won't show up on the first page of a google search's results, at least for a while.
This will return more spam-riddled results over time as magnet links grow in popularity (if more sites follow TPB and go magnet-only), but it'll do for now.
Besides, if they block pirate bay, it's only a matter of time before most other popular torrent sites are also blocked. Sure mirrors will pop up, but they won't show up on the first page of a google search's results, at least for a while.
VPN is the way to go.