Perhaps you should try some spelling variations:
"nijhoff work titles 26" » "nijhoff op titles 26", "nijhoff works titles 26", "nijhoff work title 26", "nijhoff works title 26", "nijhoff work titles 2.9", "nijhoff work titles _", "nijhoff work titles 1"
"nijhoff book title 2006" » "nijhoff op title 2006", "nijhoff book title 20", "nijhoff book title 2012", "nijhoff book table 2006", "nijhoff work title 2006", "nijhoff book time 2006"
"nijhoff book titles 26" » "nijhoff op titles 26", "nijhoff book entitled 26", "nijhoff book intitled 26", "nijhoff book tables 26", "nijhoff work titles 26", "nijhoff book times 26", "nijhoff book titles 2.9", "nijhoff book titles _", "nijhoff book titles 1"
"nijhoff boston title 26" » "nijhoff button title 26", "nijhoff boston entitled 26", "nijhoff boston tables 26", "nijhoff boston title 2", "nijhoff boston title 21", "nijhoff boston title 25"
"nijhoff ebook title 2006" » "nijhoff ebook title 20", "nijhoff ebook title 2012", "nijhoff ebook table 2006", "nijhoff ework title 2006", "nijhoff ebook time 2006"

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 ebook title 2006") OR ("nijhoff book title 2006"))) OR ((((("nijhoff book titles 26") OR ("nijhoff work titles 26"))) OR ("nijhoff boston title 26"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff ebook title 2006\") OR (\"nijhoff book title 2006\"))) or (((((\"nijhoff book titles 26\") or (\"nijhoff work titles 26\"))) or (\"nijhoff boston title 26\"))))*".
• Removing quotes may allow a broader search: (((( nijhoff ebook title 2006 ) OR ( nijhoff book title 2006 ))) or ((((( nijhoff book titles 26 ) or ( nijhoff work titles 26 ))) or ( nijhoff boston title 26 ))))*.