Do you know how search engine work to get the results page? Smart Search engine like Google finds an accurate result to fulfill user requirements. Generally, user search to get accurate products information using Google Search Engine. Google is a trusted Search engine in the world. So the user believes in Google results.
Google find the best result from the index library and short theme base on user requirements and popularity. It reads the website's content to analyze the best one.
It reads page Meta Title, Meta description, content related to the user search query and get the result page. For more information watch the full video of Matt Cutts (American software engineer).
If you watch the full video about how Search Engine Work, follow SEO Trends in 2019 To Get your Website Rank No.1 in Google