FUBAR vs omnishambles

FUBAR

adj
  • Fucked up (or, bowdlerized, fouled up) beyond all recognition (or beyond all repair, or beyond all reason, or beyond any recovery). 

omnishambles

noun
  • A situation that is bad or mismanaged in every way. 

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