  In this paper, we studied a dilute quasi two-dimensional dipolar
Bose-condensed with two- and three-body contact, and Coulomb interactions using
the Hartree-Fock-Bogoliubov-Popov approximation. We analyze numerically the
effects of three-body contact, and Coulomb interactions on the energy spectrum,
the quantum and thermal noncondensate fraction of the system. We show that
increasing the three-body contact and Coulomb interactions leads to the
appearance of rotonization and condensate instability at stronger dipole-dipole
interaction. Also we find that the temperature dependence of the thermal
noncondensate fraction is linear at low temperature.
