you need to submit your site to search engines and have good content on your site and perhaps meta tags with specific key words to describe your site as well
Then your site will be indexed and it could take a few weeks perhaps more to show up.
your site once made doesn't just pop into those search engines
you can do a search in this forum area and put search engines and read a lot of posts on how to help you get going.
But here is one post from Martin who is one regular poster around here:
Many users are under the impression that a search engine actually searches the internet. It does not. I searches it's own data bases. Until your site is indexed and added to their data base, your site will not exist.
If you do nothing, your site will eventually be found, indexed, and added to the data base. However, that can take weeks or months. To speed this along, most users submit their sites to the various search engines. This puts you on a list of sites to be indexed and probably gets you listed quicker. If you prepare you site with good content and tags that contain descriptions and keywords, this will help when the search spider gets around to your site.