Perhaps you should try some spelling variations:
"nijhoff boston titles 11" » "nijhoff boston tables 11", "nijhoff boston times 11", "nijhoff boston entitled 11", "nijhoff boston titles 1", "nijhoff boston titles 19", "nijhoff boston titles 12"
"nijhoff ebook titles 21" » "nijhoff ebook title 21", "nijhoff about titles 21", "nijhoff work titles 21", "nijhoff ebook intitled 21", "nijhoff eebook titles 21", "nijhoff ebook tables 21", "nijhoff ework titles 21", "nijhoff ebook titles 1", "nijhoff ebook titles 71", "nijhoff ebook titles 2.9"
"nijhoff book titles 21" » "nijhoff op titles 21", "nijhoff book intitled 21", "nijhoff ebook titles 21", "nijhoff book tables 21", "nijhoff work titles 21", "nijhoff book titles 1", "nijhoff book titles 71", "nijhoff book titles 2.9"
"nijhoff book tables 21" » "nijhoff op tables 21", "nijhoff book table 21", "nijhoff nook tablet 21", "nijhoff book sales 21", "nijhoff book tables 1", "nijhoff book tables 11", "nijhoff book tables 2"
"nijhoff book entitled 21" » "nijhoff op entitled 21", "nijhoff book entitled 1", "nijhoff book entitled _", "nijhoff book entitled a"
"nijhoff book title 26" » "nijhoff op title 26", "nijhoff ebook title 26", "nijhoff book table 26", "nijhoff work title 26", "nijhoff book title 2", "nijhoff book title 21", "nijhoff book title 25"
"nijhoff ebook table 2006" » "nijhoff book table 2006", "nijhoff ebook title 2006", "nijhoff ebook table 2.6", "nijhoff ebook table 20", "nijhoff ebook table 26"
"nijhoff ebola time 2006" » "nijhoff ebola time 2000", "nijhoff ebola time 2001", "nijhoff ebola time 2004"

Try widening your search to All Fields.

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 table 2006") OR ("nijhoff ebola time 2006"))) OR ((((((((((("nijhoff book titles 21") OR ("nijhoff ebook titles 21"))) OR ("nijhoff book tables 21"))) OR ("nijhoff book entitled 21"))) OR ("nijhoff boston titles 11"))) OR ("nijhoff book title 26")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff ebook table 2006\") or (\"nijhoff ebola time 2006\"))) or (((((((((((\"nijhoff book titles 21\") OR (\"nijhoff ebook titles 21\"))) or (\"nijhoff book tables 21\"))) or (\"nijhoff book entitled 21\"))) or (\"nijhoff boston titles 11\"))) or (\"nijhoff book title 26\"))))".
• Removing quotes may allow a broader search: (((( nijhoff ebook table 2006 ) or ( nijhoff ebola time 2006 ))) or ((((((((((( nijhoff book titles 21 ) OR ( nijhoff ebook titles 21 ))) or ( nijhoff book tables 21 ))) or ( nijhoff book entitled 21 ))) or ( nijhoff boston titles 11 ))) or ( nijhoff book title 26 )))).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff ebook table 2006") or ("nijhoff ebola time 2006"))) or ((((((((((("nijhoff book titles 21") OR ("nijhoff ebook titles 21"))) or ("nijhoff book tables 21"))) or ("nijhoff book entitled 21"))) or ("nijhoff boston titles 11"))) or ("nijhoff book title 26"))))*.