Hi there,

Can your head to this path .../components/com_easysocial/themes/wireframe/search/mini/item.php and increase it value accordingly based on you requirement on line 28 as follows.
[gist type="php"]
//increase it value accordingly.
<?php if (JString::strlen($item->title) > 50) { ?>
<?php echo JString::substr($item->title, 0, 20); ?> <?php echo JText::_('COM_EASYSOCIAL_ELLIPSES'); ?>
<?php } else { ?>
<?php echo $item->title; ?>
<?php } ?>
[/gist]