title: How can I query Multiple word tags in Wordpress
body: <p>A site I am developing (running WordPress 3.4.2) features a sidebar with a list of tags.</p>
  <p>When a tag link is clicked, the user is taken to tag.php which contains a custom query to display all posts related to the tag in question.</p>
  <pre><code>$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
  query_posts(array( 'post_type' =&gt; array('blog','news'),          'tag'=&gt;single_tag_title('', false), 'posts_per_page' =&gt; -1, 'caller_get_posts' =&gt; 1, 'paged'    =&gt; $paged));
  </code></pre>
  <p>This is followed by a loop that spits out a summary of each post. Everything works OK when a single-word tag (eg. 'windows') is clicked, but when a multi-word tag (eg. 'operating system') is clicked, the query does not find any posts.</p>
  <p>I understand that WordPress tags are designed to be single words, and I know that I can fix the issue by hyphenating all multi-word tags.</p>
  <p>However, I'd prefer to continue using non-hyphenated multi-word tags for ease of readability.</p>