The Advanced search is free form text input with the ability to add logical operators to enhance the query.
Further information on Lucene Query Parser Syntax is available here or on PDF here.
Note that the default field is a new field which comprises data from all available fields.
Note that Lucene supports AND, "+", OR, NOT and "-" as Boolean operators.
Symbols should be used instead of words as words are picked up as search terms.
To use the advanced search, click ‘show advanced’ in the search form: