@Jhael Gomez - this isn't natively possible, unfortunately.
In this thread, Jorge has a workaround that you could consider: https://community.atlassian.com/t5/Jira-Service-Management/Search-by-Request-type-group-via-JQL/qaq-p/1199588
Of course, Request Type groups would probably change over time, so the "Request Group" workaround isn't 100% clean...
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