title: searchkick not returnign results with whitespaces
body: <p>so i have this searckick method:</p>
  
  <pre><code>search_options = {
    misspellings: { edit_distance: 2 },
    fields: [:eventname, :date, :city],
    order: { _score: :desc, date: :asc, eventname: :asc, city: :asc },
    match: :word_start,
    suggest: true,
    page: params[:page],
    per_page: 20
  }
  if params[:date_from].present?
    datefrom = params[:date_from].to_datetime.strftime('%Y-%m-%d')
    dateto = params[:date_to].to_datetime.strftime('%Y-%m-%d')
    search_options[:where] =  { date: {gte: datefrom, lte: dateto} }
  end
  </code></pre>
  
  <p>This isn't working with whitespaces.... e.g. <code>bassjam</code> isn't matching <code>bass jam</code>, if i search <code>bass jam</code> the results wanted return fine!</p>
  
  <p>any ideas why this isn't working as expected?</p>
  
  <p>Sam</p>