Perhaps you should try some spelling variations:
"nijhoff boston entitled" » "nijhoff boston entituled", "nijhoff book entitled"
"nijhoff op titles" » "nijhoff _ titles", "nijhoff j titles", "nijhoff comp titles", "nijhoff job titles", "nijhoff our titles"
"nijhoff up titles" » "nijhoff _ titles", "nijhoff j titles", "nijhoff our titles", "nijhoff up times"

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