Advanced Find: Est. Close Date in 3 Months (not 1st month or 2nd month)

Hello,

I'm looking for a query that I can apply in Advanced Find in order to have all the opportunities closing in 3 months (not in this month or next month). I don't know how to manage that "NOT" requirement:

Est. Close Date - Next X Months - 3

NOT Est. Close Date This Month

NOT Est. Close Date Next Month

Any ideas?

Look forward to replies.

Thanks,

Sofia