I was going through the django book and here is something that could help you out:
search_fields = ('title',)
"Finally, the search_fields option creates a field that allows text searches. It allows searches by the title field (so you could type Django to show all books with “Django” in the title)."
search_fields = ('title',)
"Finally, the search_fields option creates a field that allows text searches. It allows searches by the title field (so you could type Django to show all books with “Django” in the title)."
http://www.djangobook.com/en/1.0/chapter06/