Function to pick all matches associated with certain entry (Modify Vlookup or alternative)

Dear All
In the attached sample file, I need a function to insert in R2 and copy across to U2 and down, to pick up all the values )up to four) associated with the ISSN under the Quartile heading.

I was not able to use Vlookup since it picks the first value it encounters.

All the best Taisir