To increase Google Ranking, you have to make strong On page of your website. Optimize Meta data, Content, Image, Keyword Density, Site Speed, and post useful content. after then you have to generate some quality back links from high PA DA websites.
This is called ranking, and Google has a whole arsenal of algorithms dedicated to working out which web pages should rank for which search terms. These algorithms consider a multitude of factors – the search term used, the content & functionality of the site, and the web page's authority.