Is this only new to me?

An interesting discovery I've made today regarding google search results.
I was researching keywords for my site, which is about migraine headache relief and migraine

headaches in general.

I was trying to figure out how to boost traffic and I searched for the word, migraine, in google. 11,900,000 results came up relating to migraine. So I put this in quotes and the same number of results came up.

Nothing new in that, but when I clicked on the number ten result down at the bottom of the page, Wich is the last page number and than I clicked on the last number on the following page which was 19 I was expecting to take me to page number 29, but no. It stopped at page number 14.

So clicked on the last row where it says "If you like, you can repeat the search with the omitted

results included" the highest page I've got was 33.

Next I repeated the same process without quotes and exactly the same came up.

Wow. where is the 11,900,000 hits?

It seems to me if you want to rank well all you have to do first, is to look at all the page numbers

google will come up with, screen out the multiple URLs (sites that have multiple URLs listed within the

results) and analyze the remaining pages for their leading keywords and use the ones from sites that has

the most traffic.

I don't know how google works but they either don't have that many pages or else all the pages with all the phrases, are in combination with each other. Or else in reality the millions of hits per keyword is really just a few hundred or thousand if it's a very competitive keyword.