Another question that is difficult for me to understand

I asked some christian schollars these questions but am not happy with the answer I got so again I ask:

Why is the word trinity not in the bible?
Why is the word bible not in the bible?
Why is the word Christianity not in the bible?

These are the fundamentals and yet they have not been included. Why?

Islam cracks the code or so says this website: http://islamcode.com/