There are 6 basic destructive sounds in Kyusho Jitsu. Each sound attacks a specific element of the body, and therefore 2 different meridians. There sounds themselves are really no secret. Here is a listing for you below.
That is the basic breakdown, with the words more or less spelling phonetically. But there is a lot more to using sound that just saying words and striking.
Yes you will get a result if you make the sound while striking a corresponding pressure point.
However as a result of missing intention, and understanding the “how and why” you won’t get the full reaction you seek.