snarl up vs wallow in the mire

snarl up

verb
  • To put into disarray; contort; confuse; muddle up 

  • to become congested. 

  • To become tangled; to become entangled 

  • to entangle 

  • To block (traffic); to cause (traffic) to be congested. 

wallow in the mire

verb
  • To revel in baseness or scandal. 

  • Used other than figuratively or idiomatically: see wallow, mire. 

How often have the words snarl up and wallow in the mire occurred in a corpus of books? (source: Google Ngram Viewer )