Perhaps you should try some spelling variations:
"nijhoff boston titles 2006" » "nijhoff boston tables 2006", "nijhoff boston entitled 2006", "nijhoff boston rules 2006"
"nijhoff book titles 2006" » "nijhoff op titles 2006", "nijhoff book entitled 2006", "nijhoff book intitled 2006"
"nijhoff boston times 2006" » "nijhoff boston tigers 2006", "nijhoff boston fives 2006", "nijhoff boston thomas 2006", "nijhoff boston times 2.6", "nijhoff boston dipes 2006", "nijhoff boston sites 2006"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("nijhoff book titles 2006") OR ((("nijhoff boston titles 2006") OR ("nijhoff boston times 2006")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nijhoff book titles 2006\") or (((\"nijhoff boston titles 2006\") OR (\"nijhoff boston times 2006\"))))".
• Removing quotes may allow a broader search: (( nijhoff book titles 2006 ) or ((( nijhoff boston titles 2006 ) OR ( nijhoff boston times 2006 )))).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book titles 2006") or ((("nijhoff boston titles 2006") OR ("nijhoff boston times 2006"))))*.