Perhaps you should try some spelling variations:
"nijhoff book title" » "nijhoff boston title", "nijhoff op title", "nijhoff book table", "nijhoff book time", "nijhoff book entitled"
"nijhoff book titles" » "nijhoff boston titles", "nijhoff op titles", "nijhoff book entitled", "nijhoff book intitled", "nijhoff book tables", "nijhoff book times", "nijhoff book entitleds"
"nijhoff work title" » "nijhoff op title", "nijhoff work time", "nijhoff work entitled", "nijhoff work intitled"
"nijhoff ebook title" » "nijhoff ebook table", "nijhoff ebook time", "nijhoff ebook entitled"

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