Finding records by way of portal fields
I have File One related to multiple records in File Two. I would like to search for records in File One that have specific text in multiple records in File Two. For example: File One has names of items sold. File Two has comments about each item, including notes when users have problems with an item. I want to find items in File One where more than one user has complained about an item.
If I do a search in the portal, I can only type in one row. Is there a way to type multiple requests in the portal?