load tags from multiple datasets into one textbox

I have 2 databases 1) profiles 2) stuff.
In the profile database I have 3 fields a)name, b) image c) tags
In the stuff database I have 2 fields a)name, b)tags

I have a repeater that shows for each item the name, profileImage and a textbox
In the profile dataset I set a filter to name and attach stuffdataset name to match.
In the repeater I connect the name field to profiledataset->name, image to profiledataset->image

Now here is my dilemma. I want the textbox to contain the tags (concatenated) from both profiles and stuff datasets so that I can do a search on tags that is inclusive of both.

How do I accomplish this.

sample site: https://svwoodturners.wixsite.com/corvidtest/multi-collection