  In this article, we tentatively assign the $Y(4140)$, $Y(4274)$ and $X(4350)$
to be the scalar and tensor $cs\bar{c}\bar{s}$ tetraquark states, respectively,
and study them with the QCD sum rules. In the operator product expansion, we
take into account the vacuum condensates up to dimension-10. In calculations,
we use the formula $\mu=\sqrt{M^2_{X/Y/Z}-(2{\mathbb{M}}_c)^2}$ to determine
the energy scales of the QCD spectral densities. The numerical results favor
assigning the $Y(4140)$ to be the $J^{PC}=2^{++}$ diquark-antidiquark type
tetraquark state, and disfavor assigning the $Y(4274)$ and $X(4350)$ to be the
$0^{++}$ or $2^{++}$ tetraquark states.
