Go to each page and edit its page properties. Set the "Page URL Alias" to be something with the core SEO term in it.

• Do use hyphens. Search engines are not humans. You might think the Freemonthyopnotherapist is "Fremont hypnotherapist", but to them it could also be "Free hyp the rapist".  Make it easy for the search engines - break up the words and take away the surprises.
   
• Do not use underbars. Google sees these as word joiners, so the_rapist and therapist are the same to google, but the-rapist is different.
   
• Do not make it too long. Google-knows-you-are-playing-games-with-them-when-you-do-stuff-like-that. 
   
• Make it focused.  Consider 2 URLs:
     section=All-about-apples
     section=About-apples-oranges-bananas-fast-cars-good-health-world-peace
  Now ask "If I were finding sites that were about apples, which is most relavent? Who really talks about apples?"   One URL is focused and more likely to win that question, and that question is part of what search engines are doing when filtering the results. Ask for more => you get less.