Based on the pattern you provided:
IPX-845 Miu Shiromine bai fengmiu -FHD--HEVC- IPX-845 Miu Shiromine bai fengmiu -FHD--HEVC-
Or if you want to keep the double dash style: Based on the pattern you provided: IPX-845 Miu
A common complete filename would include the resolution and codec details clearly, and possibly the file extension. For example: IPX-845 Miu Shiromine bai fengmiu -FHD--HEVC-