difference of opinion vs helter-skelter

difference of opinion

noun

  • A disagreement. 

helter-skelter

noun

  • Confusion or turmoil. 

  • A helical fairground slide. 

adv

  • In confused, disorderly haste. 

adj

  • Carelessly hurried and confused. 

How often have the words difference of opinion and helter-skelter occurred in a corpus of books? (source: Google Ngram Viewer )