How can we have a single title for the whole glossaries in the table of contents?

I’m using glossary package and perl.exe for the abbreviations and symbols. I want to have a single chapter heading (Nomenklatur) in the table of contents but a number of glossary titles (Abkürzungen, Formelzeichen, Griechische Symbols, Indizes) in the description as shown in the figure (1st and 2nd) below. However, with the current code, I have all the glossary tiles in the table of contents (figure 3rd). Could someone help me to to do this?

documentclass[a4paper, 12pt, headsepline, twoside, openright, parskip,fleqn]{scrreprt}

usepackage[toc,sort=def,xindy,order=letter,style=long,acronym,nopostdot,nonumberlist,nogroupskip,sanitizesort=true]{glossaries}

newglossary[ch1]{greek}{ch2}{ch3}{Griechische Symbole}
newglossary[ah1]{indizes}{ah2}{ah3}{Indizes}
makeglossaries

newglossaryentry{mr}{name={$m_textrm{r}$},description={rotierende Ersatzmasse des
        Kurbeltriebes}}

newacronym{ABHE}{ABHE}{Einspritzbeginn Haupteinspritzung}

newglossaryentry{alpha}{name={$ alpha$},description={Wärmeübergangskoeffizient, Steigungswinkel}, type=greek}
    
newglossaryentry{Arbeitsspiel}{name={Asp},description={Arbeitsspiel},type=indizes}

begin{document}
    
    tableofcontents    
    glsaddall
    printglossary[title=Abkürzungen,type=acronymtype]
    printglossary[title=Formelzeichen]
    printglossary[type=greek]
    printglossary[type=indizes]
end{document}