Perhaps you should try some spelling variations:
"nijhoff boston entitled" » "nijhoff boston entituled"
"nijhoff book entitled" » "nijhoff op entitled"
"nijhoff one entitled" » "nijhoff _ entitled", "nijhoff op entitled"

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 book entitled") OR ("nijhoff boston entitled"))) OR ("nijhoff one entitled")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff book entitled\") OR (\"nijhoff boston entitled\"))) or (\"nijhoff one entitled\"))".
• Removing quotes may allow a broader search: (((( nijhoff book entitled ) OR ( nijhoff boston entitled ))) or ( nijhoff one entitled )).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff book entitled") OR ("nijhoff boston entitled"))) or ("nijhoff one entitled"))*.