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 work title 2009", "nijhoff book title 29", "nijhoff book title 209", "nijhoff book title 1009", "nijhoff book title 2109"
"nijhoff book title 2012" » "nijhoff boston title 2012", "nijhoff op title 2012", "nijhoff book titles 2012", "nijhoff book table 2012", "nijhoff work title 2012", "nijhoff book title 21", "nijhoff book title 12", "nijhoff book title 22", "nijhoff book title 212", "nijhoff book title 1012", "nijhoff book title 2112"
"nijhoff ebook title 2012" » "nijhoff book titles 2012", "nijhoff ebook titles 2012", "nijhoff ebook table 2012", "nijhoff ework title 2012", "nijhoff ebook title 21", "nijhoff ebook title 12", "nijhoff ebook title 22", "nijhoff ebook title 212", "nijhoff ebook title 1012", "nijhoff ebook title 2112"
"nijhoff ebook title 20" » "nijhoff book titles 20", "nijhoff ebook titles 20", "nijhoff ebook table 20", "nijhoff ework title 20", "nijhoff ebook title 2", "nijhoff ebook title 10", "nijhoff ebook title 21"

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 2009") OR ((("nijhoff book title 2012") OR ((("nijhoff ebook title 2012") OR ("nijhoff ebook title 20")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nijhoff book title 2009\") or (((\"nijhoff book title 2012\") or (((\"nijhoff ebook title 2012\") OR (\"nijhoff ebook title 20\"))))))".
• Removing quotes may allow a broader search: (( nijhoff book title 2009 ) or ((( nijhoff book title 2012 ) or ((( nijhoff ebook title 2012 ) OR ( nijhoff ebook title 20 )))))).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book title 2009") or ((("nijhoff book title 2012") or ((("nijhoff ebook title 2012") OR ("nijhoff ebook title 20"))))))*.