These transactions you showing me are from March 5, it is not what I sent today.
Yes, I know.
Those two transactions spends the same inputs and thus 'conflicts' with the transaction that you just sent. That explains why blockexplorers are not displaying your transaction; the transaction conflicts with another transaction in their mempool and their node will not accept and display it.
I got it now. So at the end my transactions should be fine even no hash at the moment?