I answered that already.

If you search for "hotels", they'll show you things related to "hotels".

That doesn't require access to your browsing history - it's right there in the search term.

Okay then maybe browsing history was too specific a term. It might not be in the list of URLs you have visited, but it is in a list of things you have searched. So your search history.

The principal is the same. People don't want their private lives (in part expressed through what they search for) exploited and exposed.