How can I make snippets if my contents to appear on search results?

When a search query is made, the search engine like Google displays a summarized abridged content at the top that it thinks is relevant to the search query. There is no doubt that this snippet would help to boost traffic to any site if it's contents is featured on the featured there.

How can I get to feature my contents as search results snippets

To generate search engine snippets that preview your content, craft compelling page titles and meta descriptions that succinctly convey core themes. Include vital keywords naturally and entice clicks. Keep under 160 characters. Well-structured markup using JSON-LD and schema.org standards may further aid rich result previews. Optimized, informative copy compels clicks after previews.

You need a title with long tail search terms, you need to use long tail search terms in your meta tags and meta descriptions. You also need to write interesting descriptions for your content.