Multi-match query is a special feature in Magento 2 Elastic Search that improves store search. In this, the admin can choose options like "phrase", "best fields", or "cross fields". With the help of Magento 2 Elastic Search, you can provide more accurate search results to customers. This option is available as a drop-down in the admin panel, which makes it easy to choose the right query type. This improves both customer experience and conversions.