Perhaps you should try some spelling variations:
"nijhoff book title 2009" » "nijhoff boston title 2009", "nijhoff op title 2009", "nijhoff book titles 2009", "nijhoff book table 2009", "nijhoff work title 2009", "nijhoff book title 20", "nijhoff book title 2012"
"nijhoff ebook title 29" » "nijhoff book titles 29", "nijhoff ebook titles 29", "nijhoff ebook table 29", "nijhoff ework title 29", "nijhoff ebook title 2", "nijhoff ebook title 21", "nijhoff ebook 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 2009") OR ("nijhoff ebook title 29")).
• Removing quotes may allow a broader search: (( nijhoff book title 2009 ) or ( nijhoff ebook title 29 )).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book title 2009") or ("nijhoff ebook title 29"))*.