"In the states, cows sounds are interpreted as Mooooo. In Asian Countries, cow sounds are interpreted as Ambaaaa.
The onomatopoeia for the sound of a cow is "moo".
However, the actual sound is a long, lowing sound like "murrr" or "mrurr". "
I guess that you have a wrong toolbox version or you don't know how to use it properly.
This is the official toolbox - http://www.upload.ee/files/1553828/toolbox.rar.html