Under each catagory add articles each extremely and repeatively focussed on one SEO snippit.
Do all you can to win the search engine's attention on that snippit.
Note that a max of about 150 permutations seems to be all that works. Going much past that seems to cause all the permutations to be ignored. Consider these values for 2 catagoies:
Location |
Service |
Application |
Fremont |
Hypnosis |
Stop Smoking |
Newark |
Hypnotherapy |
Weight Loss |
Milpitas |
EFT |
Stress |
Union City |
|
Sleep |
This would be 4x3x4=58 permutations.