Hi @Cashiph7!
The HCIA learning materials can be obtained via the link below:
https://e.huawei.com/en/talent/#/cert/product-details?certifiedProductId=173&authenticationLevel=CTYPE_CARE_HCIA&technicalField=IIC&version=2.5.
In addition, HCIA R&S will be removed from the shelves by the end of this year and will be replaced by HCIA Datacom. It is recommended that you directly learn for the HCIA Datacom. You can get learning materials via the link below:
https://e.huawei.com/en/talent/#/cert/product-details?certifiedProductId=287&authenticationLevel=CTYPE_CARE_HCIA&technicalField=IIC&version=1.0.
Hope this helps!