Hello guy I need your help.

In
PHP Code:
single.php 
i placed Google+ comment box. here is the code:

Code:
<script src="https://apis.google.com/js/plusone.js">
</script>
<g:comments
    href="[URL]"
    width="642"
    first_party_property="BLOGGER"
    view_type="FILTERED_POSTMOD">
</g:comments>
And when i comment, there are the same comments inside every posts. Same with Facebook comments. How to make the separated?

Thanks in advance.