  In this paper, we present an extraction of the contribution from the "{\it
residual}" light charged hadrons to the inclusive unidentified light charged
hadron fragmentation functions (FFs) at next-to-leading (NLO) and, for the
first time, at next-to-next-to-leading order (NNLO) accuracy in perturbative
QCD. Considering the contributions from charged pion, kaon and (anti)proton FFs
from recent {\tt NNFF1.0} analysis of charged hadron FFs, we determine the
small but efficient {\it residual} charged hadron FFs from QCD analysis of all
available single inclusive unidentified charged hadron data sets in
electron-positron ($e^+ e^-$) annihilations. The zero-mass variable flavor
number scheme (ZM-VFNS) has been applied to account the heavy flavor
contributions. The obtained optimum set of {\it residual} charged hadron FFs is
accompanied by the well-known Hessian technique to assess the uncertainties in
the extraction of these new sets of FFs. It is shown that the {\it residual}
contributions of charged hadron FFs have very important impact on the inclusive
charged hadron FFs and substantially on the quality and the reliability of the
QCD fit. Furthermore, this study shows that the {\it residual} contributions
become also sizable for the case of heavy quark FFs as well as for the $c$- and
$b$-tagged cross sections.
