Sure, it's possible. Instead of using the .contentSnippet property of the entry, you'll want to use the .content and parse out however much you want. Unfortunately, I can't really tell you how to do that without first seeing what you're doing now. Please provide a link to your application, working or not, rather than a screenshot.
Whatever you do, you'll also want to balance the effort required to deploy the solution against the fact that the Feeds API TOS say that the deprecation policy will be no longer effective as of April 2015. This means that, after that, Google may shut the service down at any time, with or without warning. It may be prudent to start thinking about using something other than the Google Feeds API.
jg