Finding the right article starts with using the right database. There are quite a few databases that can help you, but in order to choose the right one, you have to narrow down your topic/focus. Since databases are divided in broad areas, think about one or two that best fits your topic.
See the examples below:
School-to-prison pipeline: race and inequality in education, race and criminal justice, juvenile detention centers, children and crime
Poverty and education: levels of literacy and retention of public schools, educational attainment for children in low socioeconomic neighborhoods
Drug addiction and substance abuse: substance abuse in low-income neighborhoods, the market of illegal drugs
Single motherhood in low-income areas: effects on children and their well-being; effects on family dynamics