my site is ranked well in cowboy figurines but i sell cowboy hats & cowboy buckles as well does any one how i can get listed in these arias
Use the various keywords in your on-page SEO and when you build backlinks, use variations of the keywords in the anchor text.
Proper use of such keywords in your titles and meta tags may help you, also focus on quality link building by using such keywords as your anchor text for links.
Like was mentioned, using the proper keywords on your pages and getting good backlinks will help. But cowboy hats and cowboy buckles have a lot more competition than cowboy figurines. You are going to have to work a lot harder to get good rankings for them.
I agree with zoomgs "keywords in your titles, meta tags, focus on quality link building" So ... Good content and focus on link building from great quality sites will help you in winning the competition.
Write new articles and product reviews that include your targeted keywords. Focus on adding more content. This will help you get traffic and backlinks, and increase your rankings over time.