Unless you're really lucky ranking a new website in googles search results can take a year or more.
Google favors established websites and domains.
And actually the older the content the better your chance at ranking the content in googles search results.
It's taken some of my posts on my blog up to 3 years before I saw them ranking in googles search results.
Don't give up. Have patience and just keep working on adding that content to your website.
Years down the road you should see the results.