funds vs savings bank

funds

noun
  • Financial resources. 

  • Permanent debts due by a government and paying interest. 

savings bank

noun
  • A type of financial institution that focuses on retail banking: savings of private depositors, payments, credits and insurances for individuals or small and medium-sized enterprises. 

How often have the words funds and savings bank occurred in a corpus of books? (source: Google Ngram Viewer )