Could you give me an advice for sowing:
Thanks for your help.
Both are delayed hypogeals; after their initial germination they'll need to experience some chilling before appearing above ground.
Follow the instructions for orientals in the link below to speed things up. Remember to inspect the seeds regularly in the bags for signs that something is happening (individual species vary in the time they take, and so can different varieties within a species).
Here is a link that might be useful: Seed Sowing