@Graciel ,
I believe what
@Kronos147 said may be correct. Are you doing a clause by clause internal audit? If so, you are most likely not covering your actual processes. For example, 6.3 covers planning for change. However, process change is mentioned in multiple clauses (7.5.3.2 c, 8.2.4, 8.3.6, 8.5.6, etc). That's why you need to audit your organizations process for controlling change. Changes can occur in a complex management process, manufacturing, a support process. The change control process of the organization should consider the entirety.