I see poorly configured entries in Google SERPs, and it often comes down to the individual sites' snippets, or lack of, or poorly configured snippets.
If you've spent a great deal of time achieving great ranking, but you're not capturing traffic because it's not appealing, or inadequately informative, you've wasted your investment in SEO.
Recently, Google's John Mueller created a video about how to control
which parts of snippets appear in the SERPs [webmasterworld.com], which is helpful. "data-no snippet" is your control.
However, it's worth looking at the bigger picture of snippets, and how to maximize the opportunities.
As usual, google has some good documentation on the topic, and it's worth following to get it from the horses mouth, as it were.
The document includes creation of snippets, prevention and adjustment of snippet length, best practices for the creation of quality of meta descriptions, and manual and programmatic descriptions.
What more do you need to know?
Control your snippets in search results [developers.google.com]