2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42213We discuss interplay between the high-twist (HT) terms in the operator-product expansion and the next-to-next-to-leading-order (NNLO) QCD corrections to the deep-inelastic-scattering structure functions in analysis of the high-precision data for charged leptons. Under account of the NNLO corrections the observed HT terms change within their experimental errors only and do not vanish in the NNLO.7 pages, LATEX, 5 figures (EPS). Talk presented at the 12th International Seminar on High-Energy Physics (QUARKS 2002), Novgorod, Russia, 1-7 Jun 2002High Energy Physics - Phenomenologytext