\[ f(x) h(y(x))+g(x) y'(x)-\frac {j(y(x)) y'(x)^2}{h(y(x))}+y''(x)=0 \] ✗ Mathematica : cpu = 0.969482 (sec), leaf count = 0 , could not solve
DSolve[f[x]*h[y[x]] + g[x]*Derivative[1][y][x] - (j[y[x]]*Derivative[1][y][x]^2)/h[y[x]] + Derivative[2][y][x] == 0, y[x], x]
✗ Maple : cpu = 0. (sec), leaf count = 0 , could not solve
dsolve(diff(diff(y(x),x),x)-j(y(x))/h(y(x))*diff(y(x),x)^2+g(x)*diff(y(x),x)+f(x)*h(y(x))=0,y(x))