Search by posts on the search page

search-by-posts-by-default.php

<?php
								$args = array(
												'post_type' => 'page',
												'name__like' => $_GET['s'],
								);

								$query = new WP_Query( $args ); ?>
								<?php if ( have_posts() ): ?>
									<h2>Search Results for '<?php echo get_search_query(); ?>'</h2>
									<ol>
											<?php while (have_posts() ) : the_post(); ?>
												<li>
													<h2><a href="<?php esc_url( the_permalink() ); ?>" title="Permalink to <?php the_title(); ?>" rel="bookmark"><?php echo $post->post_title; ?></a></h2>
													<time datetime="<?php the_time( 'Y-m-d' ); ?>" pubdate><?php the_date(); ?> <?php the_time(); ?></time> <?php comments_popup_link('Leave a Comment', '1 Comment', '% Comments'); ?>
														<?php the_content(); ?>
												</li>
											<?php endwhile; ?>
									</ol>
								<?php else: ?>
									<h2>No results found for '<?php echo get_search_query(); ?>'</h2>
								<?php endif; ?>

search-by-posts.php

<?php
								$posts = get_posts( array(
										'post_type' => 'page',
										'category'    => 0,
										'order'       => 'DESC',
										'meta_key'    => '',
										'meta_value'  =>'',
										's' => $_GET['s'],
										'tax_query' => array(
										)
								) );

								if ( $posts ):
										foreach( $posts as $post ):
										setup_postdata($post);
											// формат вывода the_title() ...
												if($post->post_type == 'page'): ?>

													<li>
														<a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( $post->post_title ) ?>  download">
															<span>Страница</span>
															<?php echo esc_html( $post->post_title ) ?>
														</a>
													</li>

												<?php
												elseif($post->post_type == 'documents'):
														$document_id = get_post_meta($post->ID, 'documents_file', true);
														$document_url = wp_get_attachment_url( $document_id );
                            $document_pathinfo = pathinfo( get_attached_file($document_id));
                            $document_extension = $document_pathinfo['extension'];
												?>

														<li>
																<a href="<?php echo $document_url; ?>" title="<?php echo esc_attr( $post->post_title ) ?>">

																		<?php echo esc_html( $post->post_title ) ?>
																		<span>(<?php echo $document_extension; ?>)</span>
																		<span>Скачать</span>
                                    <?php the_time( 'Y.m.d' ); ?>

																</a>
														</li>

												<?php
												endif;
										?>