Advanced search for Formulas

Hello everybody,

I'm looking for a method to find all the formulas in the product tree that contains the word "part number" in the syntax.
the formulas look something like this:

Formula.1:'Part1\Part Number'=xxxxxxxxxxxx

Name is not usable because it's not consistent and I don't know how to search inside the text of the formula.

Hope this is the right community, I'm not sure if this is an ekl matter or something for a programmer.

Thank you so much for the help.