No changes after using Yoast SEO

When did you change the title and meta? Google will only change it when the url is recrawled by Google bot and reindexed. You can speed up this process by visiting Google webmaster admin and instigating a recrawl/re-index of the page.

Thanks @g-olly,

I’ve changed them on 06.03.2017.
The Crawl Stats in Google webmaster is activated.
But no changes so far.

Be sure to test, then resubmit your sitemap(s) to Google via search console.

Also one trick I use is change size of sitemap in Yoast from 1000 to 900; then next big update change from 900 to 1000.

Seems to help. ??

You searched for a specific search term (the bold words in the screenshot) which means Google scans the index for that exact phrase. Google uses the search term to highlight information in search results which is why the meta description is different than what you entered into the plugin.

To see the meta title and description without search term manipulation, use the site search operator followed immediately by the URL of your site.

site:designliner.de

Thank you @neotrope for your advise. Have a nice day ??

Thanks so much @amboutwe for your comment and for the useful tips. Wish you a nice day ??