Avoid underset text overlaping

As you can see, underset on right hand becomes overlaped. How can I avoid this? This is my MWE

\documentclass[14pt]{article}\usepackage{amsmath}\usepackage{mathtools}\newcommand{\lunderset}[2]{\underset{\mathrlap{#1}}{\mathrlap{#2}}\phantom{#2}}\begin{document}    \begin{equation}         \lunderset{\text{legame}}{\Delta G} =          \lunderset{\text{van der Waals}}{\Delta G} +         \lunderset{\text{legami H}}{\Delta G} +         T\Delta S    \end{equation}\end{document}