Get the Whitepaper called Google Hacking para Pentesters – Mas que una busqueda, un conducto de intrusion. Written in Spanish.
You can download it from the following link: https://packetstormsecurity.com/files/download/105212/Google-Hacking-para-Pentesters.pdf
Source: https://packetstormsecurity.com/files/105212/Google-Hacking-para-Pentesters.html