Hi Chi Man,
I believe he learnt SNT, CK and a certain amount of the Wooden Dummy Form.
From what I have heard however it is very debatable whether or not he leant this amount from Yip Man himself however, with the general concenses being he learnt a large percentage of his Wing Chun from Wong Shun Leung instead.
This kind of makes sense to me being that Wong was Yip Man's assistant teacher at Yip Man's Kwoon.
Jin-Ka