Case sensitive search

Hi,

I am not a Confluence developer myself, I just work at a company where documentation is stored on a locally hosted Confluence website, one can search it with Confluence Query Language and so on. I wanted to know if CQL supports case sensitive search? I am trying to find out about a certain acronym “PReP” and I do not want to return results for “prep”, “preparation”, “prepping for”, …

If I wanted to modify the code for our Confluence website to support this functionality where would I start?