I've got several samba shares mounted in my home directory (mounted with the "mount.cifs" command). I can browse the shares just fine. From Nautilus I can search them just fine. My question is why doesn't the dash file lens search the mounts as well? I've also noticed files I open from the shares do not show up as recently used (again in the file lens). I've Googled around and I've been unable to come up with any thing.
This is a bug Unity's files lens fails to mount bookmarked remote shares https://bugs.launchpad.net/ubuntu/+source/unity-lens-files/+bug/760309
I would also recommend that you file your situation with launchpad.
The importance is low and no fix committed.