To begin to search successfully you must use a variety of words that relate to your topic
You might be interested in reading this list of preferred terms from the Berkeley Underground Scholars.
You can just search for information on a topic using a broad keyword phrase, such as "juvenile justice".
Alternatively, if you know a little about your topic before you search, it will help you focus in on specific aspects of the topic that interest you most.
I like to to start with introductory overviews from GVRL or CQ Researcher.
Practice: Skim one of the following articles on juvenile justice to build a basic understanding of:
Offender, Criminals, Victims, Community, Students, Teens, Juvenile Offenders, Women, Men, Department of Justice, Court System, Police, Courts, Administration, Social Workers, Parents
Juvenile Prison, Cities, Juvenile Courts, Schools, Education, High School, Workplace, Faith Community, Church, Indigenous Cultures
Crime, Stop and Frisk, Racial Profiling, Rehabilitation, Reintegration, Reparations, Behavior, Mental Health, Child Welfare, Social Justice, Sentences, Recidivism