In your query post, I don’t see your post type parameter. You must need this parameter to get all posts. Please try this follow the code and put it anywhere you want to show it.
<?php
$post_args = array(
'post_type' => 'post', //get post by 'post' (default post type).
'posts_per_page' => -1, //show all posts.
'tax_query' => array(
array(
'taxonomy' => 'category',
'field' => 'slug',
'terms' => array('culture')
)
)
);
$the_qry = new WP_Query($post_args);
if($the_qry->have_posts()){
while($the_qry->have_posts()){
$the_qry->the_post();
//show all list the post.
echo '<li>
<a href="'.get_permalink().'">'.get_the_title().'</a>
</li>';
}
wp_reset_postdata();
}
?>