The keyword you should use to find these types of in-depth analysis is case study, wherein a specific instance of __________________ is studied and analyzed.
Example: You want to find a case study of the use of Integrated Marketing Communications.
A strategy you might use is to search your topic first without "case study," and use the Document Type filter for Case Study. If you don't get a result you can use, then remove the "Case Study" filter and add "case study" to your search instead.
