Sure, you can do it two ways. You can edit the keywords yourself, or do like I do and send my account manager an email and tell him he sucks and here are the domains that need work. Did I mention my account manager sits 6 feet away from me?
Personally, I always recommend sending a list of domains that you think need work to your account manager and let them work on them. If you have a misspelling of a domain and we get it wrong, it's fine to go to the edit page and modify the keyword. But if you have a domain like hammerhead.com and you want it to be a bar domain and not a shark or a hammer part, then definitely tell your account manager.
Everyday our system finds a new domain with stuff that it doesn't know about and we add the correct terms to our system every domain gets a little better. We just need to know about it.
Or you can always PM it to me and I will take a look at it. If I can figure out why I'm not getting emails from dnforum anymore.
Donny