ALL OF THESE COMMANDS ARE FOUND BY JUST RUNNING:
/chatfilter

To add a word to the filter, You can use the command:
/chatfilter addword <word>
To add a unicode word to the filter, You can use the command:
/chatfilter addunicode <unicode word> <normal word for it>
To find the list of all banned words inside your filter, You can use the command:
/chatfilter list
To remove a word from your filter, You can use the command:
/chatfilter removeword <word>
To remove a unicode word from the filter, You can use the command:
/chatfilter removeunicode <unicode word>