Elasticsearch exact string search does not work using inverted commas

Performing a search with multiple words does enclosed with inverted commas does not work.

Instead of filtering the results to those that have an exact match, the search results includes all results that have all of the words individually.

e.g. search = "void Main" returns all files with the words 'void' and 'Main' anywhere in the document.![Capture]

As per below, we're running a hosted version 8.16.1-ee.