You can also use the Lucene query language, which is what ElasticSearch uses by default, to refine your searches to data within the fields, make more complex filters, or otherwise track down the data with more precision. The Lucene query language goes beyond what we will cover in this book, but you can get an excellent overview in the Kibana documentation at https://www.elastic.co/guide/en/kibana/current/lucene-query.html.
Lucene's search language is oriented around searching unstructured text data, so basic searching for a word is as simple as entering a word. Multiple words are treated as individual searches, so if you are searching for a specific phrase, put the phrase in quotes. The search parser will also understand ...