![]() It is important to understand when to use each boolean operator and how to construct compound boolean syntax to get the most out of your search. Boolean search logic is executed by using the operators AND, OR, or NOT between each search term or phrase. In the Articles + more search via the Library Search, you can access the Advanced Search form for this functionality. Boolean operators help define the logical relationship among multiple search terms and phrases. In this example from the Web of Science database, you can use the Basic search form to add multiple search lines by clicking on Add Another Field. The first two can be used together with the ‘AND’ operator, while ‘FROM’ is used independently. Sometimes you will have to access the Advanced Search for these options. Within Boolean search, you can also filter your results by country, language, or social media platform with the help of ‘country’, ‘lang’, and ‘FROM’ respectively. Many databases offer the functionality to separate out your search terms, and this saves you having to add the parentheses.
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