Meta Description changing with new post

Hello,
When i search on Google with keywords related to my site, the global site description is not displayed instead the contents on a module are displayed, which changes dynamically. How can i stop this? please advise.
In fact, the content that is appearing on Google is the one from the (testimonial module in Creative demo) GK News Show module..
Please help

Thanks

Hi

You can set a meta tags for each page separately in menu item options.

I have already tried that, adding in the Meta Tag options of Menu item but of no use

Hi

That's odd. Please also try set it in article's meta form. Remember to clear cache after this changes.