ERIC Combine search terms with Boolean operators Next = click
Boolean operators To combine search terms AND: all terms must occur e.g. computer AND education (restrict) OR: at least one of the terms must occur e.g. computer OR education (enlarge) NOT: this term should not occur e.g. computer NOT education (exclude)
First method: combined searching in Advanced
adoek1: Lege dia dupliceren en gebruiken voor de schermafbeelding en te plakken adoek1: Lege dia dupliceren en gebruiken voor de schermafbeelding en te plakken children
adoek1: Lege dia dupliceren en gebruiken voor de schermafbeelding en te plakken adoek1: Lege dia dupliceren en gebruiken voor de schermafbeelding en te plakken
adolescents
AND: both terms must occur
OR: at least one of the terms must occur
NOT: this term should not occur
Second method: enter terms + operators directly in Search
But take care: AND and NOT are processed before OR Combining operators is also possible So use parentheses if necessary (children or adolescents) and internet
Third method: Combine search actions in Search History See: Combine searches elsewhere in this manual
Summary Restrict with AND Enlarge with OR Exclude with NOT Compound search? Use parentheses if necessary!