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