Adobe Bridge: Other Keywords Won't Delete

Hi,

I am new to Adobe Bridge, but I am struggling with deleting keywords. Whenever I delete 'Other Keywords' they immediately come back. I have attached a video to give you a better understanding of what I mean.

Also, does anyone know of any good alternatives to Bridge that work in the same way but with a better way to narrow down keyword searches. Doing Control + F and then doing that 'all criteria met' thing is such a long way to narrow down searches, which the filter option was able to do this.