  The continuous monitoring capability of Fermi-LAT has enabled the exploration
of Quasi-Periodic Oscillations (QPOs) in the $\gamma$-ray light curve of blazar
that has given a new perspective to probe these sources over a wide range of
time scales. We report the presence of transient QPOs in the long-term
$\gamma$-ray light curve of blazars PKS 0244-470 and 4C +38.41. We first
identified different flux states using the Bayesian Block algorithm and then
explored the possible transient QPOs in the segments of each flux phase where
the flux level changes over fairly regular intervals. Combining this with the
source's intrinsic variance, we identified two flux phases for PKS 0244-470:
one activity (AP-1) and one quiescent phase (QP-1). For 4C+38.41, we similarly
identified four activity (AP-1, AP-2, AP-3, AP-4) and two quiescent (QP-1,
QP-2) phases. AP-1 phase of PKS 0244-470 shows QPO of $\sim$225 days persisting
for 8 cycles ($\sim$ 4.1$\sigma$). In 4C+38.41, AP-1 and AP-2 phases show
QPO-like behavior of $\sim$110 days and $\sim$ 60 days, respectively,
persisting for 5 cycles. In AP-3, we identified three sub-phases, and all show
a $\sim$ week scale possible recurrent rise with five complete cycles, while in
QP-1, we could identify 2 sub-phases (Q1, and Q2). Q1 phase shows a period of
$\sim$ 104 days with six complete cycles. Q2 phase also shows QPO but with only
$\sim$3.7 cycles. We discuss the possible origin and argue that the current
driven kink instability and curved jet model seem the most likely cause for
shorter and longer QPOs.
