Perhaps you should try some spelling variations:
"nijhoff book title 27" » "nijhoff boston title 27", "nijhoff op title 27", "nijhoff book titles 27", "nijhoff ebook title 27", "nijhoff book table 27", "nijhoff book title 2", "nijhoff book title 17", "nijhoff book title 21"
"nijhoff ework title 2012" » "nijhoff work title 2012", "nijhoff ebook title 2012", "nijhoff work titles 2012", "nijhoff ework title 21", "nijhoff ework title 12", "nijhoff ework title 20"

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 27") OR ("nijhoff ework title 2012")).
• Removing quotes may allow a broader search: (( nijhoff book title 27 ) or ( nijhoff ework title 2012 )).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book title 27") or ("nijhoff ework title 2012"))*.