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

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