KQL can't work with Escaping Special Characters

Hi Team,

I am having log which contain following term.
URI: /(select(0)from(select(sleep(15)))v)/
URI: /sleep-with-dreams

I tried to filter the first result out with the below kibana search such as
URI: (sleep(*))

But it always ends up with both the results. I tried regex as well but it could not be worked.

Does Kibana KQL support special character escape ?

Same thing got happened with + (plus) sign as well.