Pokemon Theme - Search Results showing full page instead of excerpt

I feel like I changed something to make the search results show full page instead of excerpts, but now I can't change it back. I feel like I need to change something on the search.php file but it currently looks exactly like the file that came with the theme.

How can I get the search results to show part of the content of a page instead of the entire page?

Thanks! :)

Hi!

Could you give us the URL of your website, please?