Perhaps you should try some spelling variations:
associated factors » associated bacteria
associated vectors » associated vector, associated receptors, associated pastors
associate editors » 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 (((associated vectors) OR (associated factors))))) OR (associate editors)).
• Adding a wildcard symbol may retrieve word variants: ((((associate editor) or (((associated vectors) or (associated factors))))) or (associate editors))*.