could this code detect some keywords in a sentence.

[mobilejammer]

I am a newer in automatic speech recognition. Now I have a task to detect keyword in real time and in real application. For example on speech command is "open the door". I wonder if this code could satisfy this problem.
My only problem about this code's use is, this model's train data only some special wav files and test only on special wav files. My 'special' means that it just a word no a real sentence.
I will read this paper one more again to understand it better.
Tks