Perhaps you should try some spelling variations:
"nijhoff book entitled 2006" » "nijhoff book untitled 2001", "nijhoff book entitled 10", "nijhoff book entitled 60", "nijhoff op entitled 2006"
"nijhoff boston titles 2006" » "nijhoff boston tables 2006", "nijhoff boston times 2006", "nijhoff boston entitled 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 book entitled 2006") OR ("nijhoff boston titles 2006")).
• Removing quotes may allow a broader search: (( nijhoff book entitled 2006 ) or ( nijhoff boston titles 2006 )).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book entitled 2006") or ("nijhoff boston titles 2006"))*.