Adicionar imagens no resultados da busca

Adicionar miniaturas no resultados da busca

Estou precisando acrescentar a imagem do meu post nos resultados de busca e aumentar a quantidade de posts que as pessoas visualizam, que agora está em apenas quatro.

O código o seguinte:

<?php
/**
 * The search template file.
 *
 * @package Betheme
 * @author Muffin group
 * @link http://muffingroup.com
 */

get_header();

$translate['search-title'] = mfn_opts_get('translate') ? mfn_opts_get('translate-search-title','Ooops...') : __('Ooops...','betheme');
$translate['search-subtitle'] = mfn_opts_get('translate') ? mfn_opts_get('translate-search-subtitle','No results found for:') : __('No results found for:','betheme');

$translate['published'] 	= mfn_opts_get('translate') ? mfn_opts_get('translate-published','Published by') : __('Published by','betheme');
$translate['at'] 			= mfn_opts_get('translate') ? mfn_opts_get('translate-at','at') : __('at','betheme');
$translate['readmore'] 		= mfn_opts_get('translate') ? mfn_opts_get('translate-readmore','Read more') : __('Read more','betheme');
?>

<div id="Content">
	<div class="content_wrapper clearfix">

		<!-- .sections_group -->
		<div class="sections_group" style="width:100% !important;">

			<div class="section">
				<div class="section_wrapper clearfix">

					<?php if( have_posts() ): ?>

						<div class="column one column_blog">
							<div class="blog_wrapper isotope_wrapper">

								<div class="posts_group classic">
									<?php
										while ( have_posts() ):
											the_post();
											?>
											<div id="post-<?php the_ID(); ?>" <?php post_class( array('post-item', 'clearfix', 'image_wrapper') ); ?>>

												<div class="post-desc-wrapper">
													<div class="post-desc">

														<?php if( mfn_opts_get( 'blog-meta' ) ): ?>
															<div class="post-meta clearfix">
																<div class="author-date">
																	<span class="author"><span><?php echo $translate['published']; ?> </span><i class="icon-user"></i> <a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>"><?php echo get_the_author_meta( 'display_name' ); ?></a></span>
																	<span class="date"><span><?php echo $translate['at']; ?> </span><i class="icon-clock"></i> <?php echo get_the_date(); ?></span>
																</div>
															</div>
														<?php the_post_thumbnail( $size, $attr ); ?>

<?php  endif; ?>

														<div class="post-title">
															<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
														</div>

														<div class="post-excerpt">
															<?php the_excerpt(); ?>
														</div>

														<div class="post-footer">
															<div class="post-links">
																<i class="icon-doc-text"></i> <a href="<?php the_permalink(); ?>" class="post-more"><?php echo $translate['readmore']; ?></a>
															</div>
														</div>

													</div>
												</div>
											</div>
											<?php
										endwhile;
									?>
								</div>

								<?php
									// pagination
									if(function_exists( 'mfn_pagination' )):
										echo mfn_pagination();
									else:
										?>
											<div class="nav-next"><?php next_posts_link(__('&larr; Older Entries', 'betheme')) ?></div>
											<div class="nav-previous"><?php previous_posts_link(__('Newer Entries &rarr;', 'betheme')) ?></div>
										<?php
									endif;
								?>

							</div>
						</div>

					<?php else: ?>

						<div class="column one search-not-found">

							<div class="snf-pic">
								<i class="themecolor <?php mfn_opts_show( 'error404-icon', 'icon-traffic-cone' ); ?>"></i>
							</div>

							<div class="snf-desc">
								<h2><?php echo $translate['search-title']; ?></h2>
								<h4><?php echo $translate['search-subtitle'] .' '. esc_html( $_GET['s'] ); ?></h4>
							</div>	

						</div>	

					<?php endif; ?>

				</div>
			</div>

		</div>

	</div>
</div>

<?php get_footer(); ?>

E estou usando o css:

.search .post {float: center; width: 185px; border: none; margin: 15px; }
.search .post image_wrapper {width: 185px; height: 185px; border: none; }
.navigation .search {clear: both; }

A unica coisa que consegui até agora é ter separação de colunas, mas preciso das imagens e mais posts.

podem me ajudar?