process of keyword usage
is another subject, and formally falls into the subject
area of website optimization and keyword density.
What is needed
here is careful design of each page on your website,
where the proper keywords are selected and placed where
the search engine spiders of each of the search engines will
best find them.
such as SiteBuildIt
will automate this process for you.
you want to do it yourself, here are a few resources
to help you.