[source, ruby]
----
response = client.search(
  body: {
    query: {
      more_like_this: {
        fields: [
          'title',
          'description'
        ],
        like: [
          {
            _index: 'imdb',
            _id: '1'
          },
          {
            _index: 'imdb',
            _id: '2'
          },
          'and potentially some more text here as well'
        ],
        min_term_freq: 1,
        max_query_terms: 12
      }
    }
  }
)
puts response
----
