Perhaps you should try some spelling variations:
"nijhoff book title 2009" » "nijhoff boston title 2009", "nijhoff op title 2009", "nijhoff book titles 2009", "nijhoff ebook title 2009", "nijhoff book table 2009", "nijhoff book title 2012", "nijhoff book title 29", "nijhoff book title 209", "nijhoff book title 1009", "nijhoff book title 2109"
"nijhoff book title 20" » "nijhoff boston title 20", "nijhoff op title 20", "nijhoff book titles 20", "nijhoff ebook title 20", "nijhoff book table 20", "nijhoff book title 2", "nijhoff book title 10", "nijhoff book title 21"
"nijhoff sop title 2109" » "nijhoff op title 2109", "nijhoff sop title 10", "nijhoff sop title 21", "nijhoff sop title 19", "nijhoff shop title 2109", "nijhoff ship title 2109", "nijhoff app title 2109"
"nijhoff _ title 2109" » "nijhoff _ title 10", "nijhoff _ title 21", "nijhoff _ title 19"

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 20"))) OR ((("nijhoff sop title 2109") OR ("nijhoff _ title 2109")))).
• Removing quotes may allow a broader search: (((( nijhoff book title 2009 ) or ( nijhoff book title 20 ))) or ((( nijhoff sop title 2109 ) or ( nijhoff _ title 2109 )))).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff book title 2009") or ("nijhoff book title 20"))) or ((("nijhoff sop title 2109") or ("nijhoff _ title 2109"))))*.