Who cares..what would one do? build some crappy site around one term? cough mfa mfa...
Those terms may come up randomly though depending on page's content..for example your site might be about for example "making money online" but you write post about someone you know having cancer or something on you blog and those mesothlmia ads might appear on that page..really thats how it supposed to work...without manipulation
I suppose there is some people who do though are succefull I mean look at this..
4-mesothelioma-info.com/ Lmao a topsite for mesothelioma sites..how creative is that>> actually thats good idea **off to build a topsite**