Perhaps you should try some spelling variations:
"nijhoff book title" » "nijhoff boston title", "nijhoff book titles", "nijhoff book table", "nijhoff work title"
"nijhoff ebook title" » "nijhoff book titles", "nijhoff ebook titles", "nijhoff ebook table", "nijhoff ework title"
"nijhoff op titles" » "nijhoff _ titles", "nijhoff j titles", "nijhoff up titles", "nijhoff comp titles", "nijhoff job titles"

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 title") OR ((("nijhoff ebook title") OR ("nijhoff op titles")))).
• Removing quotes may allow a broader search: (( nijhoff book title ) or ((( nijhoff ebook title ) or ( nijhoff op titles )))).
• Adding a wildcard symbol may retrieve word variants: (("nijhoff book title") or ((("nijhoff ebook title") or ("nijhoff op titles"))))*.