1. I have found it both inadequate and misleading.
    我发现这些资料写的不是不够好，就是使人产生误解，

2. I have looked at most of the available material and have found it both inadequate and misleading.
    我已看过大多数的可寻材料，并发现这些资料写的不是不够好，就是使人产生误解，