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 book time 2009", "nijhoff book title 20", "nijhoff book title 29"
"nijhoff book title 2012" » "nijhoff boston title 2012", "nijhoff op title 2012", "nijhoff book titles 2012", "nijhoff book table 2012", "nijhoff book time 2012", "nijhoff book title 21", "nijhoff book title 12", "nijhoff book title 20"
"nijhoff work title 2009" » "nijhoff op title 2009", "nijhoff work title 20", "nijhoff work title 29", "nijhoff work time 2009", "nijhoff work entitled 2009", "nijhoff work intitled 2009"
"nijhoff ebook title 2009" » "nijhoff book titles 2009", "nijhoff ebook titles 2009", "nijhoff ebook table 2009", "nijhoff ebook time 2009", "nijhoff ebook title 20", "nijhoff ebook title 29"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("nijhoff book title 2009") OR ("nijhoff work title 2009"))) OR ("nijhoff book title 2012"))) OR ("nijhoff ebook title 2009")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"nijhoff book title 2009\") OR (\"nijhoff work title 2009\"))) or (\"nijhoff book title 2012\"))) or (\"nijhoff ebook title 2009\"))".
• Removing quotes may allow a broader search: (((((( nijhoff book title 2009 ) OR ( nijhoff work title 2009 ))) or ( nijhoff book title 2012 ))) or ( nijhoff ebook title 2009 )).
• Adding a wildcard symbol may retrieve word variants: (((((("nijhoff book title 2009") OR ("nijhoff work title 2009"))) or ("nijhoff book title 2012"))) or ("nijhoff ebook title 2009"))*.