First use the library database Opposing Viewpoints in Context
to identify particular viewpoints related the issue you're researching. Then search for those particular viewpoints/concerns/arguments in SLUth Search Plus
to find articles.
For example, if you were researching child poverty and welfare programs, you could search Opposing Viewpoints in Context for "child poverty" and review relevant Viewpoints Essays. If you click on "Viewpoints" you'll find more ssays representing different views on this issue.
You might learn, for example, that welfare programs that help parents get jobs and higher salaries lead to elementary students doing better in school. However, you might also learn that adolescents do worse in school when their parents get off welfare and enter the workforce because parents aren't around as much as they used to be and they (adolescents) have to take on additional responsibilities. These are two conflicting issues that need to be reconciled/addressed.
From there, you could search in SLUth Search Plus for articles about these topics. For example, you could search for: child poverty and parental employment and education