How to remove blog title?

Question

Search Engine Optimization

Good afternoon. There was such a situation. Can't remove blog name from search. Let's say in Google search I write xxxx. My site comes out with xxxx | site name
How can I remove the site name?
Installed ALL in one SEO and Yoast SEO.
I set up both plugins without the appearance of the blog name. It's been 2 days and it still doesn't show up correctly.
Tried through plugins and header.php, it doesn't work.

Answer 1

1. Install plugin https://uk.wordpress.org/plugins/wordpress-seo/
   
2. Customize the heading text as you wish
   
3. Wait for google to update index