@jhun
Sorry Bro But You Can't move apps from Internal Storage to SD Card in Huawei Y6 ll as I own This Phone and and I tried everything but Nothing Works.
I have Huawei Y6 ii and tried it myself in so many ways, but could not find any options to transfer the apps to SD card unless root is changed.
Check Settings > Apps > Downloaded, check the apps under it if any have the option "move to SD card".