Google provides Blogging Platform but it doesn't provide good rankings in search results for granted. There are several SEO holes that you need to fill manually and other holes that you can't fill despite of your awareness due to the fact that you owe no proper control of your blog. Use the techniques listed below to improve the SERP of your blog.
Insert Meta Tags in Template
When you have a self hosted wordpress (wordpress.org), you can use various plugins one of which is All in one SEO plugin which automatically adds meta tags to each and every post and also inserts canonical url property in your theme but in blogger you need to do it manually.Find this code in you template:
<head>
<b:include data='blog' name='all-head-content'/>