Perhaps you should try some spelling variations:
associate director » associated vector
associate editors » associated pastors, associated operators, associated receptors
associate factor » associated vector, associated fatty
bacteria » bacterial

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