Perhaps you should try some spelling variations:
nijhoff book » nijhoff boston
book title » book titles, ebook title, book table
nijhoff op » nijhoff _, nijhoff j
op titles » up titles, comp titles, job titles
title 26 » title 2, title 21, title 25

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 26 ) OR ( nijhoff op titles 2006 )).
• Adding a wildcard symbol may retrieve word variants: (( nijhoff book title 26 ) or ( nijhoff op titles 2006 ))*.