Perhaps you should try some spelling variations:
associated secretory » associated factors, associated operators
associate director » associated vector
associate editors » associated factors, associated operators
associate editor » associate factor, associated vector, associated factor

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: ((((associate editor) OR (associate editors))) OR (((associate director) OR (associated secretory)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((associate editor) OR (associate editors))) or (((associate director) or (associated secretory))))".
• Adding a wildcard symbol may retrieve word variants: ((((associate editor) OR (associate editors))) or (((associate director) or (associated secretory))))*.