documentclass[paper=a4,fontsize=18pt]{article}
usepackage{geometry}
geometry{
    % verbose,
    landscape,      % page orientation (landscape or portrait)
    a4paper,        % paper size
    tmargin=20mm,   % page top margin
    bmargin=20mm,   % page bottom margin
    lmargin=5mm,   % page left margin
    rmargin=5mm % page right maring
}
usepackage[utf8]{inputenc}
usepackage[defaultsans]{opensans} %font
usepackage[T1, T2A]{fontenc}
usepackage[english,bulgarian]{babel}
usepackage{longtable} % use this table
usepackage{colortbl}
usepackage{makecell}
usepackage[lutf8x]{luainputenc}

usepackage{arydshln}

begin{document}
begin{longtable} {|
p{30mm}|
p{30mm}|
p{20mm}|
p{20mm}|
p{30mm}|
p{20mm}|
p{35mm}|
p{15mm}|
p{15mm}|
p{15mm}|
p{30mm}|
p{30mm}|}
hlinerowcolor{red}
raisebox{-0.7mm}[0mm][12mm]{ thead[l]{ Test textnumero } } &
raisebox{-0.7mm}[0mm][12mm]{ thead[l]{ Папка textnumero } } &
raisebox{-4mm}[0mm][12mm]{ thead[l]{ Пореден \ textnumero ~ на \ документ } } &
raisebox{-4mm}[0mm][12mm]{ thead[l]{ Машинен \ textnumero \ документ } } &
raisebox{-0.7mm}[0mm][12mm]{ thead[l]{ Документ textnumero } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[l]{ Дата на \ документа } } &
raisebox{-4mm}[0mm][12mm]{ thead[l]{ Дата на \ въвеждане \ на документа } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[l]{ Потре- \ бител } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[l]{ Сметка \ дебит } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[l]{ Сметка \ кредит } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[r]{ ~~~~~~~~~~~~~~~~~~~ Стойност \ дебит } } &
raisebox{-2.3mm}[0mm][12mm]{ thead[r]{ ~~~~~~~~~~~~~~~~~~~ Стойност \ кредит } }
\ hline endhead
test & test &
test & test &
test & test &
test & test &
test & test &
test & test\ hdashline
end{longtable}
end{document}