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

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 vector) OR (associate director))) OR (associated factors)))))).
• Adding a wildcard symbol may retrieve word variants: ((associate editor) or (((associate editors) or (((((associated vector) or (associate director))) or (associated factors))))))*.