How to solve my clutch on my 2013Nissan Almera 1.5?

Good Day
Please advise my Nissan almera 2013 1.5 Accenta.
I had recently replaced my Master Cylinder as the clips that go to the pedal was worn/broke, however since then I can not get my clutch sorted i keep on bleeding my clutch, it will drive for +-20-30 km than clutch drops to floor again, with a few pumps it comes back again for a couple of shifts than looses again.
I have tried reverse bleeding and normal and still nothing seems to works..
there is no leakage or spillage of brake fluid and the reservoir is full i am truly lost.
Any advise on what could possibly be wrong