pass over: to deliberately avoid discussing something.
(This verb has more than one meaning; this phrasal verb can be separated.)
He talked about his childhood, but passed over his teenage years.
We’ll pass over what happened last week, shall we?
steer away from: to avoid talking about something or doing something. (This phrasal verb can be separated.)
She tried to steer the conversation away from the topic of her ex-boyfriend.
He usually steers away from serious subjects.
Source: Knight's English