Perhaps you should try some spelling variations:
"nijhoff book title 26" » "nijhoff boston title 26", "nijhoff op title 26", "nijhoff book titles 26", "nijhoff book table 26", "nijhoff work title 26", "nijhoff book title 2", "nijhoff book title 25", "nijhoff book title _"
"nijhoff ebook title 2006" » "nijhoff book titles 2006", "nijhoff ebook title 20", "nijhoff ebook title 2012", "nijhoff ebook titles 2006", "nijhoff ebook table 2006", "nijhoff ework title 2006"
"nijhoff ebook title 21" » "nijhoff book titles 21", "nijhoff ebook titles 21", "nijhoff ebook table 21", "nijhoff ework title 21", "nijhoff ebook title 1", "nijhoff ebook title 2", "nijhoff ebook title _"
"nijhoff ebook table 21" » "nijhoff book table 21", "nijhoff book tables 21", "nijhoff ebook table 2.1", "nijhoff ebook table 1", "nijhoff ebook table 2"

Try widening your search to All Fields.

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 ebook title 2006") OR ((((("nijhoff ebook title 21") OR ("nijhoff ebook table 21"))) OR ("nijhoff book title 26")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nijhoff ebook title 2006\") or (((((\"nijhoff ebook title 21\") OR (\"nijhoff ebook table 21\"))) or (\"nijhoff book title 26\"))))".
• Removing quotes may allow a broader search: (( nijhoff ebook title 2006 ) or ((((( nijhoff ebook title 21 ) OR ( nijhoff ebook table 21 ))) or ( nijhoff book title 26 )))).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff ebook title 2006") or ((((("nijhoff ebook title 21") OR ("nijhoff ebook table 21"))) or ("nijhoff book title 26"))))*.