Perhaps you should try some spelling variations:
"nijhoff book titles" » "nijhoff boston titles", "nijhoff book entitled", "nijhoff book intitled"
"nijhoff ebook title" » "nijhoff book 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 titles") OR ("nijhoff op titles"))) OR ("nijhoff ebook title")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nijhoff book titles\") OR (\"nijhoff op titles\"))) or (\"nijhoff ebook title\"))".
• Removing quotes may allow a broader search: (((( nijhoff book titles ) OR ( nijhoff op titles ))) or ( nijhoff ebook title )).
• Adding a wildcard symbol may retrieve word variants: (((("nijhoff book titles") OR ("nijhoff op titles"))) or ("nijhoff ebook title"))*.