How do you get a video thumbnail in your Google results link?
Firstly, make sure that the videos on your site are indexed. You can do this with the ‘site:yourwebsiteexample.com’ search and segment the results to video. Secondly, you need to ensure that your page title matches the term being searched for and that the competition is not so high that you’re simply not shown. You can submit a video sitemap to Google to help you get indexed and show the video thumbnail to Googlebot in the index.