adverbial phrase vs formulation

adverbial phrase

noun
  • A phrase that collectively modifies a verb, adjective, another adverb, or a prepositional phrase. 

formulation

noun
  • A particular linguistic construction; a turn of phrase. 

  • A medicinal preparation. 

  • The act, process, or result of formulating or reducing to a formula. 

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