Perhaps you should try some spelling variations:
nijhoff book » nijhoff boston
book title » book titles, ebook title, book table
title 2006 » title 26, title 2012
nijhoff op » nijhoff _, nijhoff j
op titles » up titles, comp titles, job titles
title 20 » title 2, title 10, title 21

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((( nijhoff book title 2006 ) OR ( nijhoff book title 20 ))) OR ( nijhoff op titles 2006 )).
• Adding a wildcard symbol may retrieve word variants: (((( nijhoff book title 2006 ) or ( nijhoff book title 20 ))) or ( nijhoff op titles 2006 ))*.