Insert '_search_by_term_name' into the Query Variable of the Search Filter to search the taxonomy listing by term names. Apply a Terms Query to the listing

search_terms_by_names.php

<?php

add_filter( 'jet-smart-filters/query/final-query', function($query){
	
	if( isset( $query['meta_query'] ) ){
		
		foreach( $query['meta_query'] as $item => $value){
			
			if( $value['key'] === '_search_by_term_name' ){
				
				$query['search'] = $value['value'];
				
				unset($query['meta_query'][$item]);
				
			}

		}
		
	}

	return $query;
	
});