need vs thrive

need

verb
  • To want strongly; to feel that one must have something. 

  • To be obliged or required (to do something). 

  • To be required; to be necessary. 

  • To have an absolute requirement for. 

noun
  • Lack of means of subsistence; poverty; indigence; destitution. 

  • A requirement for something; something needed. 

thrive

verb
  • To grow or increase stature; to grow vigorously or luxuriantly, to flourish. 

  • To increase in wealth or success; to prosper, be profitable. 

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