Hello,

Thank you so much for contacting our support center.

It is a default WooCommerce function and if you want to disable it try to add the following code snippet to the functions.php file in your child theme

add_action(
	'init',
	function() {
		add_filter( 'woocommerce_redirect_single_search_result', '__return_false' );
	}
);

Kind Regards
XTemos Studio