closed as unclear what you're asking by Michael, Jack Johansson♦, Dave Romsey, Jacob Peattie, cjbj Nov 17 '17 at 7:17
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
This is actually the place for the webmasters.stackexchange.com.
But to answer your questions: Google trying to show the most relevant results based on what the search query is. This also includes the meta description. Google may choose to show another content on your page which is different than your meta description tag.
Google's attempts to match snippets to queries don't always work the way you'd like, but in general they're a good thing. Matching, bolded keywords drive click-throughs, and people rarely read the whole text of a snippet. If it’s just a couple of long-tail queries, don't worry about it.