Website text > Find in google

Hello,
I've a website since one years, but today, I've try to search in google with " " one part of article write on my website.
I've 0 result, so little worried about this. I've a sitemap, i'm register on google search/analytic.
I've try with other website and it's works perfectly, so why not for me?

Thx in advance for ur help, i'm completely lost.

Make a account on Google Webmaster: https://search.google.com/search-console

Add your website, and submit the sitemap. Wait for a few days and check the results again on SERP.

Hello,
Thx for ur response, but i've already done the sitemap with and i've already an account on google webmaster.

For Serp, it's : it's the website serp dot com?
I've no account on this website, the price is realy high for me.