[Tracker] searching for multiple tags

[lluis gomez i bigorda <lluisgomez hangar org>]

hi all,

I'm wondering if thre is a way to search for files tagged simultaneously 
with two tags simultaneously ...

like this ::

tracker-search sex violence

but not for keywords but for tags ...

I've tryed with tracker-tag but it seems to show all tagged with "sex" 
and all tagged with "violence" ... but not all tagged with "sex" and 
"violence" at same time ...

if there is no command line option to do it, maybe is possible via RDF?

thanks in advance.
ll.