When I search for some term that is in a collection, is returned only the objects that have just this term. But if the collection have mor than one object this don't work. Example.

A book have two authors and another book have only one author. Then when I looking for the book that have only one author like "author:Jack" this book is returned, but the book that have two authors and one author is Jack too and second author is Mike, this book is not returned.

Somebody can help me ?

Hi guillerme,
sure we can help with you should post this to the Search forum, and describe how you're mapping your book/author and how you're searching for it.
Incindentally, searching for books is the most classic example and you'll find lots of examples about this in the unit tests (download the sources), or in the book.