Blocked Words

[netmundi]

I think the blocked words resource would be better.
Filling the word sex as a blocked subdomain, in admin interface, prevents users to register sex.domain.com, but it is possible, for example, to register mysex.domain.com, yoursex.domain.com, sexplanet.domain.com, xxxsex.domain.com etc.
Is it possible to block any word wich have sex in its structure?
I tryied to fill in admin censored words with *sex, or sex* or *sex*, like it is used in windows file search, but it did not work.
Is it possible to do it?
Thanks.