Perhaps you should try some spelling variations:
"nijhoff book titles" » "nijhoff boston titles", "nijhoff op titles", "nijhoff book entitled", "nijhoff book intitled"
"nijhoff ebook title" » "nijhoff book title"
"nijhoff up titles" » "nijhoff op titles", "nijhoff _ titles", "nijhoff j titles", "nijhoff our titles", "nijhoff up times"

You may be able to get more results by adjusting your search query.

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