The old tip for naming a dog was to always choose a name that began with a hard consonant sound e.g Pippa or Bobby rather than say Harry , Harriet or Anthea (!).The idea is that dogs learn, recognize and respond to the hard sound more easily than a soft one.
Now, that was helpful, wasn't it? LOL Though, come to think of it. Pippa might do (bit Sloaney for a roughy toughy terrier ?).It's difficult without seeing the bitch.Regardless of breed, some individuals have behaviour, manner or personality that suggests one name more than another.