increasing your adsense PPC

i made some researchs and i discovered that i can increase my adsense PPC from 0.18$ to even 5$ , and that is done by mixing your blog KWs with fancy KWs, for exemple my blog is about water & i'll change it to water-ensurance , this can improve my PPC, the idea is still opaque, can someone give me a hint on how to do it ?

it may increase, but the ads that will be showing will be of no interest to your readers, thus a slightly lower CTC for you. are you ready for that?

if i get 2 clicks on a high PPC it's better than 20 clicks on lower PPC, my traffic is stable no matter what the ads are, it's worth trying