RDS Business Reference Suite
Choose Promotion or Product Strategy from the Concept Term drop down menu and type in a keyword.

If this does not work, type in (promo*) and Budget or expenditures) and (product name or company name)

Proquest
Type in Promotional Products as a Subject Term and add other terms as necessary

Ebscohost Business Source Elite
Type in Product Management as a Subject Term and add other terms as necessary