Unable to find some user using using email as search param

Hi Team,

Post referencing - https://support.zendesk.com/hc/en-us/community/posts/4415990612506-Using-search-api-to-find-end-user-details-using-emaiid-as-query-parameter?page=1#community_comment_6809799795098

I have understood a wildcard operator does not work for email hence no response.
I wanted to understand if we have a way around it .


Thanks