The only option I see is to delete the duplicates created by mistake while posting the content. That's a usual mistake occurring in meta titles optimization with negative consequences at the indexing point. For instance, Google doesn't index websites with poor and duplicated content. Websites should keep track of search engines' updates once in a while. Quality link building services also keep the websites' rankings up and improve their general visibility.
How do I add SEO to my blog?
Blog SEO Tips
Use 1–2 long-tail keywords.
Use keywords strategically throughout the blog post.
Optimize for mobile devices.
Optimize the meta description.
Include image alt text.
Limit topic tags.
Include user-friendly URL structures.
Link to related blog posts.