  We present a search for the production of a Higgs boson in association with a
single top quark ($tHq$), using data samples collected by the CMS detector in
$pp$ collisions at center-of-mass energy of 8 TeV corresponding to integrated
luminosity of 19.7 fb$^{-1}$. The search exploits a variety of top quark and
Higgs boson decay modes resulting in final states with photons, bottom quarks,
or multileptons, and employs a variety of machine learning techniques to
maximize the sensitivity to the signal. The present analysis is optimized for a
scenario where the Yukawa coupling has sign opposite to the standard model
prediction, which would result in a large enhancement of the signal cross
section. Results for individual final states and the combined results will be
presented.
