You are on top of those keywords which have less competition and off course less traffic on them , research the best keywords for your business having good global monthly searches , Google ad word tool may help you for this.
You shouldn't forget abou writing good, quality content. One article should have about 500 words, people will stay on your site for a longer time and Google will recognize your site as a trustworthy website.
that's not a answer buddy, well yes u need a lil bit expert suggestions but you can do this by yourself as well, by using different webmaster and seo tools, try find some tools from google and study them by yourself except paying $$ to experts.