Metatag Keywords And Search Engine

I recently designed a website.
I was taught in the university i to use a meta-keywords.
I listed as much as possible.
After uploading the website.
I was suprised that after few weeks, only one of many keywords links to that website from google.
I register the URL with google long time.
What could be the problem?
Thanks

@Yawa
Thanks a lot.
1) Few of those keywords are in the content. By the way, what magic does Seun uses on this forum as searches on google link one to Nairaland
2) You mean files like index,contact, about us etc

cheers

Sister, are you married? I can give my old man to you.
I have loads of keywords and beside the web page has just 5 pages so extended naming(e.g Contact-yawatilo.php) may just take care of very few.

Your old man?  Ewwwh!  Just kidding.  I am not looking right now but will keep him on my reserve list 

Well, to me, it doesn't matter if it's a 1-pager or a 1000-pager, you should do things right all the time.  What you are saying in other words is, "well, since this is just the first round of wimbledon, I will play the way I like and cruise to the next round."  You have to be at the top of your game always.

In addition to what sbucareer has said, I would like to add that:
1) If possible, you share the URL with us so that we can help you better,
2) You add page names to your title tags and your page headers (as H1s), and
3) You subscribe to google sitemaps (GS).  GS will ask that you upload an sitemap in xml form.  Not hard.  Just visit xml-sitemaps.com and that site can automatically generate such a file for you, for free, based on any URL you provide.