Can you give an example of using the context of a previous query?
I applaud you for trying to make a new search engine - it's not something sane people would try to do because of a certain behemoth eating everyone's lunch. It's going to take extraordinary insight and out of the box thinking to get something really good.
A lot of these comments are not fond of the author's arrogance... Which seems to be a little nitpicky.
The techniques won't work if you use them verbatim because someone else who has read the book will recognize it.
He simplifies things to a set of rules, but it's up to you to be judicious on when to use them and to do your homework on what the underlying principles are.
I applaud you for trying to make a new search engine - it's not something sane people would try to do because of a certain behemoth eating everyone's lunch. It's going to take extraordinary insight and out of the box thinking to get something really good.