  Over a thousand stars in our Galaxy have been detected as radio emitters, but
no normal stars are known to possess radio-emitting lobes similar to radio
galaxies. Several recent attempts by us and other authors to find such objects
remained inconclusive. Here we present a further search for double-lobed radio
stars in two large samples of spectroscopic stars: over 20,000 white dwarves
from the Sloan Digital Sky Survey (SDSS) DR12, and 2.5 million stars from the
Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). These were
cross-matched with sources from the Faint Images of the Radio Sky at Twenty
Centimeters (FIRST) survey at 1.4 GHz to look for source pairs straddling the
stars with moderate symmetry about the stars. We found only four promising
candidates for double-lobed radio stars, confirming they must be extremely
rare. By comparison with SDSS, we inferred that about 16 per cent of LAMOST
spectra may have erroneous classifications. We also rediscovered the giant
radio galaxy J0927+3510 and propose a different, more distant host, suggesting
a much larger radio size of 2.7 Mpc.
