Search patterns for multiples address in to or cc

[Marcelo Laia]

I know and I use the ~C, ~b and ~B pattern for a specific search.

How ever, I would like to search multiples address in to or cc header.  
Like this:

to: someone1 at domain1.edu.au, someone2 at domain1.edu.au, ...
cc: someone5 at domain2.edu.au, someone7 at domain10.edu.au, ...

In fact, I would like to search messages that there are more than one 
address in to or cc header.

This is more a regex that mutt, I think.

Have you a time to helpe me?

Thank you so much!

-- 
Marcelo