You can use the Boolean operators and, or, or not in searching. Without these Boolean operators, Swish-e will assume you're anding the words together. The operators are not case sensitive.

The wildcard (*) is available, however it can only be used at the end of a word: otherwise is is considerd a normal character.

Expressions are always evaluated left to right. However it is always possible to force the order of evaluation by using parenthesis.