RegEx Advanced Search

I'd like to know how I can find all the words that match only two or more capital letters attached using RegEx in the Advanced Search, like:

"This_is_my_HOme_02" or "CAn-you_Close-the-windOWs_004"

But not

"This_Is_My_Home_02" or "Can-You_Close-the-Windows_004"

[A-Z][^_ ]+[A-Z] with the case-sensitive option turned on.

Correction: [A-Z][^-_ ]*[A-Z]