Perhaps you should try some spelling variations:
"nijhoff work entitled" » "nijhoff book entitled", "nijhoff op entitled"
"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 intitled", "nijhoff working title"
"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 work entitled"))))) 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 work entitled\"))))) or (((\"nijhoff ebook title\") or (\"nijhoff book titles\"))))".
• Removing quotes may allow a broader search: (((( nijhoff book title ) or ((( nijhoff work title ) OR ( nijhoff work entitled ))))) 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 work entitled"))))) or ((("nijhoff ebook title") or ("nijhoff book titles"))))*.