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

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 (associated secretory)).
• Adding a wildcard symbol may retrieve word variants: ((((associate editor) or (associate editors))) or (associated secretory))*.