Full-text articles from multi-volume encyclopedias, biographical collections, business plan handbooks, company history compilations, consumer health references, and specialized reference sources.
Databases have controlled vocabularies and in order to find scholarly articles on your topic, you need to use the same vocabulary as the database. Look for a link to thesaurus, subject headings, etc.
Here are some keywords and phrases you could use:
Reminder: Use quotes when searching phrases (except in PubMed).