Regex dont work

[lukas735]

#I pasted some regex in the field... mostly they work fine but some complex regex dont worked for example this one

[Rr]+[+\s\d-_.,][UuEe]+[+\s\d-_.,][MmDd]+[+\s\d-_.,][BbDd]+[+\s\d-_.,][IiLl]+[+\s\d-_.,]*[EeTt]+

This are just example words my searchwords are not so simple that i just can block reddit or Rumble as webpage. They have multiple sites under the search word.
Anyway. This not worked. He block now r-u-m-b-l-e but not anymore rumble. But star means it dont have to occurre (0 or more). And + means 1 or more.

Also i had the feeling that he have a problem if you use a regex for two words after another. None of this regex worked.
Because it not worked my regex for the whitespace looks at the moment like this: [+\s\d]
For example ramble reddit it match not anymore

For explanation my regex should be able to block this r u m b l e
And even this r3u3m1b5l3e
And also this r-u-m-b-l-e
Every number in searchword or blank or dot i can block also. More workarounds through my searchword i couldnt implements because allowing every letter between it would match nearly everything in Url...

Surely here it also can accidently sometimes that it match a random code in URL but i would bear that.

Can you help me with that issue?