Return all matches between two arrays

Hi I have two lists of data that are of different lengths.
One is a dynamic range of between 1-10 lines and the other is a named range.

Is there a way to check the list in the table for any matches in the named range and return the cell value that matches?
There would be a maximum of two matches each time. I have already filtered a unique list of order numbers to another sheet.

Then (because I'm a little bit greedy) is there an easy way to add/concat a value from another cell in the same row to each result?
I have tried to give an example with a much reduced data sample. In reality I would be using a data set of c50,000 lines which I am splitting into about 10,000 ranges.