landflood vs whirlpool

landflood

noun
  • An overflowing of land by river; an inundation or freshet. 

whirlpool

noun
  • A swirling body of water. 

  • Turmoil, or agitated excitement. 

  • A hot tub, jacuzzi. 

verb
  • To spin or swirl like the water in a whirlpool. 

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