In this paper, we discuss the solutions of the nonlinear differential-difference equations \(\begin{aligned} \qquad f^{n}(z)+wf^{n-1}(z)f^{\prime }(z)+f^{(k)}(z+c)=p_{1}e^{\alpha _{1}z}+p_{2}e^{\alpha _{2}z} \end{aligned}\) and \(\begin{aligned} \qquad f^{n}(z)+wf^{n-1}(z)f^{\prime }(z)+q(z)e^{Q(z)}f^{(k)}(z+c)=p_{1}e^{\alpha _{1}z}+p_{2}e^{\alpha _{2} z}, \end{aligned}\) where \(n\ge 2\) , \(k\ge 0\) are integers, \(w, c, p_{1}, p_{2}, \alpha _{1}\) and \(\alpha _{2}\) are non-zero constants satisfying \(\alpha _{1}\ne \alpha _{2}\) , \(q\not \equiv 0\) is a polynomial and Q is a non-constant polynomial.
