WebMaster Goolge

http://goldendandelion.com.my Golden Dandelion Trading

This is the website that i build, from start i still can find my webpage on google in any keyword on my page. But after i join Google WebMaster, and submit my sitemap file, then i totally cannot found my webpage already in any keyword, except i type "golden dandelion trading" then only can find my site link, but the home page still cannot found it, i only can search the whole web address then only can found. This make me feel nervous and confuse, Whether this page is nobody see, but i just want to tell an experience to others.