Lookup box to display internalName and productId when I pass productId and click on find button

[shekarpala]

Hi friends,
I'm trying to display product find screen as lookup ,when i give any productId in productId field and click on search, It is displaying fine.

But when I search with productId I want to display  product along with that I want get data of other products which matches this productId's internalName.

please guide with some logic (condition to pass )