Perhaps you should try some spelling variations:
"nijhoff book title 26" » "nijhoff op title 26", "nijhoff book titles 26", "nijhoff ebook title 26", "nijhoff book table 26", "nijhoff book title 2", "nijhoff book title 21", "nijhoff book title _"
"nijhoff book title 25" » "nijhoff op title 25", "nijhoff book titles 25", "nijhoff ebook title 25", "nijhoff book table 25", "nijhoff book title 2", "nijhoff book title 21", "nijhoff book title 5"
"nijhoff boston title 26" » "nijhoff boston entitled 26", "nijhoff boston tables 26", "nijhoff boston twelve 26", "nijhoff boston title 2", "nijhoff boston title 21", "nijhoff boston title _"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nijhoff book title 26") OR ("nijhoff boston title 26"))) OR ("nijhoff book title 25")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff book title 26\") OR (\"nijhoff boston title 26\"))) or (\"nijhoff book title 25\"))".
• Removing quotes may allow a broader search: (((( nijhoff book title 26 ) OR ( nijhoff boston title 26 ))) or ( nijhoff book title 25 )).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff book title 26") OR ("nijhoff boston title 26"))) or ("nijhoff book title 25"))*.