Autocomplete to show all results order by text introduced in the input.

autocomplete.js

// Show matched results. First beggining results with match string and then the rest of them.
// Using Jquery autocomplete and Lodash library
// items is array of objects where label is the text to show in the input.

$('.autocomple').autocomplete({
  source: function(request, response) {
    var matcher = new RegExp( $.ui.autocomplete.escapeRegex( request.term ), "i" );
    var results = _.filter(items, function(item) {
      return matcher.test(item.label);
    });
    _.map(results, function(result){
      return result.index = result.label.indexOf(request.term)
    });
    results = _.sortBy(results, [function(result) { return result.index; }])
    response(results);
  }
});

I have these code

I want to sort by alphabet and keep display containing the word entered even if the word is in the middle or at the end.
Could you help me? I'm stuck:(