Appear Your Post Title Before Blog Name in Blogger

1. Go to your template section in left side and edit the templates and find this code

<title><data:blog.pageTitle/></title>


2. Then replace it by 

<b:include data='blog' name='all-head-content'/>
     <b:if cond='data:blog.pageType == &quot;index&quot;'>
<title><data:blog.pageTitle/></title>
<b:else/>
<title><data:blog.pageName/> | <data:blog.title/></title>
</b:if>


3. Save the template