Jquery Chosen Plugin does not filter search on PHP site

I'm using the plugin Jquery chosen does not perform filtering in php system.

Code to scan bank and get list of data:

<div class="grupo">
<!-- class="borda select2_single form-control comboauto" -->
    <select name="id_projeto" id="id_projeto" class="borda select2_single form-control ">
        <option value="">Selecione</option>
        <?php 
            foreach (ProjetoModel::retorna(" order by descricao") as $obj) { 
        ?>
            <option value="<?php echo $obj->getid() ?>" 

            <?php echo $obj->getid()==$vObject->getidProjeto()?'selected':'' ?>>
            <?php echo $obj->titulo; ?>
            </option>
        <?php } ?>
    </select>
</div>

plugin jquery chosen

<scriptsrc="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" type="text/javascript"></script>
  <script src="chosen.jquery.js" type="text/javascript"></script>
  <script src="docsupport/prism.js" type="text/javascript" charset="utf-8"></script>
  <script type="text/javascript">
    var config = {
      '.chosen-select'           : {},
      '.chosen-select-deselect'  : {allow_single_deselect:true},
      '.chosen-select-no-single' : {disable_search_threshold:10},
      '.chosen-select-no-results': {no_results_text:'Oops, nothing found!'},
      '.chosen-select-width'     : {width:"95%"}
    }
    for (var selector in config) {
      $(selector).chosen(config[selector]);
    }
  </script>