Perhaps you should try some spelling variations:
associated vector » associated factors, associated secretory, associated infection
associate editor » associate editors, associated factor, associated motor
associate factor » associated factors, associate editors
associated fatty » associated fauna, associated factors, associated states

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