These things take a while. Despite what it may want you to think, Google is not an omniscient deity. Be patient, keep posting content, and you will rank.
I am, of course, assuming that your post is fresh, given that no additional info was given. If your post is in fact not new, then you may need to do as the others have said, and update your sitemap. You will probably rank then.
Also, how is the English on your site/in your post? Google has been known to sink content with faulty English, so you may also want to have that variable checked.