home help vs scrubwoman

home help

noun
  • A person employed, especially by a social services department, to perform household chores and provide aid to a patient or infirm person in the latter's own home; a carer. 

  • The aid provided by such people. 

scrubwoman

noun
  • A woman employed to do general housework, such as cleaning a house or office. 

How often have the words home help and scrubwoman occurred in a corpus of books? (source: Google Ngram Viewer )