Access - Question on concatenation of field values

Team -

I have a table with 5 columns in access (user creates this table on the fly).

Ex:
Catalog   SearchType   SearchCriteria   SearchTerm  BulkQuery

Ex: with Data
Catalog   SearchType   SearchCriteria   SearchTerm  BulkQuery
All              Test                   Common          Bag               Select * from Data where Catalog = 'All' and SearchType = "Test" and Criteria = "Common" and term = "Bag"

so, this table will have 1 or more than 1 rows.

What i need is to concatenate all the "BulkQuery" with union

Ex:
BulkQuery from row1 union bulkquery from row2 etc.

Kindly help,