Each field of study has a number of key journal publications which cover the major themes in that area. Searching within these journals, rather than searching an entire database, can provide research that is more relevant to your assessment task.
To help you begin searching:
Becoming a Social Worker key journals in the Navitas Library
(Click "Search within this publication" to find articles)
Search terms you may find useful when searching for resources
Social work theory
Social work practice
Theory and practice