Airway not in the database

[gxs]

I tried to input an ifr route from rjtt haneda to vhhh HK, and 2 airways are missing.  A1 and Y50 are missing.   The way point works fine, just the airway didn’t register.  Not sure if the database is up to date or maybe I am doing something wrong.   So I am curious to whether all the airways are in the fmc or only partial airways are available.  I did fine registering routes flying from vhhh to kjfk.