![]() | Information about whole sections and categories you will find easiest through our | Site Search engine to search for specific persons, objects, themes or topics Queries can be constructed as Boolean expressions. Boolean expressions consists of operands [= the search words] and operators [= terms such as AND, OR, NOT, XOR, and MOST OF]. For example, the following is a boolean search expression: (apple AND pie) AND NOT corporation OR (steve AND jobs). This means: “Search for documents in which apple and pie occur together, but without the word ‘corporation’ occurring, or a document containing both Steve and jobs. | |
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