This paragraph clearly needs more work:

    Using the current syntax it is not possible to define searches
    where the *same* value must meet different criteria ("cell phone
    number containing the digits 1234"). Something like that could be
    added as a future extensions, for example by allowing search
    values to have more complex types than the simple '<text>'.  term
    with a more complex type.

What I thought I had typed is:
    Using the current syntax it is not possible to define searches
    where the *same* value in a *value list* ...
                           ^^^^^^^^^^^^^^^^^

"term with a more complex type." at the end needs to be removed.