Parked Domain SEO PROBLEM

My domain is www.xyz.com

and i have two parked domains www.xyz1.com and [URL=“http://www.xyz2.com”]www.xyz2.com

The problem is the search engine [COLOR=darkred]shows the parked domain name[/COLOR] in search results (green coloured)

means,

when seach with my keyword, it displays www.xyz1.com

im want to display www.xyz.com the exact domain name…

WHAT TO DO FOR THAT???