corporation vs shoestring operation

corporation

noun
  • The municipal governing body of a borough or city. 

  • In Fascist Italy, a joint association of employers' and workers' representatives. 

  • A body corporate, created by law or under authority of law, having a continuous existence independent of the existences of its members, and powers and liabilities distinct from those of its members. 

shoestring operation

How often have the words corporation and shoestring operation occurred in a corpus of books? (source: Google Ngram Viewer )