Multiple solutions for a class of Kirchhoff equation with singular nonlinearity

In this article, we investigate the existence and multiplicity of solutions of Kirchhoff equation \begin{equation*} \left{ \begin{aligned} -(1+b \int_{$\mathbb{R}$^3}|\nabla u|^2)\Delta u= k(x)\frac{|u|^2 u}{|x|} +\lambda h(x)u,~~x\in$\mathbb{R}$^3\ u(x)\rightarrow 0

\end{equation*} where the potential $k(x)$ allows sign changing. Making use of
Nehari manifold method and Concentration-compactness principle, we obtain the
existence and multiplicity of solutions for this equation.