Google exploit keywords

Many of us know bout google hack keywords.. !
but how can we find some paid products....[mainly ebooks]

heres how to do it

goto google and search d following


inurl:"cbreceipt"
use alexa.com
Your credit card or bank statement will show a charge from CLKBANK*com
A charge from CLKBANK
A Charge from paypal
Paypal payment or paypal payment confirmed
Paypal Statement
CLKBANK save as
CLKBANK Download instructions
CLKBANK*com
cbreceipt or cbreceipt click
CLKBANK right click or CLKBANK click
Download the latest version of adobe acrobat reader
right click save target as
right click save
right click save file as
Click here to download
Save target as
Save file as
recieve future updates
username is password is
username: password:
Members or Members area
Thank you for your order
Thank you for your purchase
Thanks for your order
Thanks for your purchase
Thanks for purchasing......
Order Confirmation
Order Confirmed

although der is a bigg list of such keywords. .!but inurl:"cbreceipt" works gr8