Perhaps you should try some spelling variations:
"nijhoff book title 2006" » "nijhoff boston title 2006", "nijhoff op title 2006", "nijhoff ebook title 2006", "nijhoff work title 2006", "nijhoff book time 2006", "nijhoff book title 26", "nijhoff book title 2012", "nijhoff book title 206", "nijhoff book title 1006", "nijhoff book title 2106"
"nijhoff book title 20" » "nijhoff boston title 20", "nijhoff op title 20", "nijhoff ebook title 20", "nijhoff work title 20", "nijhoff book time 20", "nijhoff book title 2", "nijhoff book title 10", "nijhoff book title 21"
"nijhoff book table 20" » "nijhoff boston table 20", "nijhoff op table 20", "nijhoff book table 2", "nijhoff book table 10", "nijhoff book table 21"
"nijhoff book titles 2006" » "nijhoff boston titles 2006", "nijhoff op titles 2006", "nijhoff book entitled 2006", "nijhoff book intitled 2006", "nijhoff ebook titles 2006", "nijhoff work titles 2006", "nijhoff book times 2006"

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 2006") OR ((("nijhoff book title 20") OR ("nijhoff book table 20"))))) OR ("nijhoff book titles 2006")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff book title 2006\") or (((\"nijhoff book title 20\") OR (\"nijhoff book table 20\"))))) or (\"nijhoff book titles 2006\"))".
• Removing quotes may allow a broader search: (((( nijhoff book title 2006 ) or ((( nijhoff book title 20 ) OR ( nijhoff book table 20 ))))) or ( nijhoff book titles 2006 )).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff book title 2006") or ((("nijhoff book title 20") OR ("nijhoff book table 20"))))) or ("nijhoff book titles 2006"))*.