Question - How to match page rule that has space or special characters?

I want to tag a Page URL that ends with say

"Manage%20Crown%20Jewels"

How do I specify such a thing in contains?

I tried various things such as

~contains('Manage Crown')

~contains:"Manage%20Crown%20Jewels"

~contains:%22Manage%20Crown%20Jewels%22

None of these work when I test rule. 

What am I doing wrong?