def es_new_query(tags=[]):
    """
    Query from Elasticsearch
    Args:
        tags: list of tags
    Returns:
        job postings containing the tags, ranking by relevance
    """
    tags = [t.lower() for t in tags]
    body = {"size" : 25,
        'query':{
            'match':{
                'tags': ' '.join(tags)
            }
        }
    }
    return body