materio-base-legacy/sites/all/modules/gui/materiobasemod/templates/materio-search-api-search-block.tpl.php

<div class="inner">
  <div class="msa-search">
    <h4><?php print $search_title; ?></h4>
    <?php print render($searchform); ?>
  </div>
  <div class="msa-advanced-search">
    <h4><?php print $advanced_search_title; ?></h4>
    <?php print render($advanced_searchform); ?>
  </div>

</div>