You can combine such expressions with Boolean operators (AND, or, NOT).

可以使用布尔操作符(AND, OR, NOT)组合这些表达式(AND, OR, NOT)。

youdao

To use a table subquery, you need to use an SQL operator to combine the embedded query with a Boolean expression.

要使用表子查询，需要使用SQL操作符将嵌入式查询与布尔表达式组合在一起。

youdao

In fact, you can combine any Boolean search operators, as long as your syntax is correct. An example: "sausage and mash" -onions filetype: doc.

事实上，只要你的语法正确，你可以混合使用任何布尔搜索运算符。

youdao