Practice: Nesting
Exercise 1
Which search example will retrieve items on smoking and adolescents as well as items on smoking and teenagers?
(smoking OR teenagers) AND adolescents
smoking AND (adolescents OR teenagers)
(smoking AND adolescents) AND teenagers
Exercise 2
Which search example will retrieve items on the effects of stress or anxiety or strain suffered during examinations?
(stress OR anxiety OR strain) AND exam*
(exam* OR stress) AND (strain OR anxiety)
stress AND (exam* OR anxiety OR strain)
