Try searching OneSearch for course-related topics rather than Google.
Sample search strings:
Belmont Report AND clinical research
international law AND human rights
Nuremberg code AND ethics
"human subject protection" AND (NIH OR National Institutes of Health)
IRB AND clinical research
("conflict of interest" OR COI) AND clinical research
"Affordable Care Act" AND "human subjects' research"
OneSearch combines most of the library's books, journal articles, and digital resources into a single search.
Note: Pay close attention to computer generated citations before using them in your papers.