Dear friends that's what I said in my last post if you have gone through that my page is back in results and I have also shared what I did to get back.
The pages with a higher page rank might have dominated your page from displayed in the top results page. But that may not be the only reason. It may also happen due to the regular updates of search engine database. Try searching your page with your keyword in this format : intitle:"yourphrase". If its still not there, you have to work some more to create quality links to your pages and then try again.