Perhaps you should try some spelling variations:
decreases aggression » decreases expression (Expand search), decrease aggressive (Expand search), increased aggression (Expand search)
migration decrease » vibration decreases (Expand search), maturation decreases (Expand search), modulation decrease (Expand search)
aggression object » aggression conduct (Expand search), aggression over (Expand search)
food decreases » foods decreases (Expand search), goods decreases (Expand search), and decreases (Expand search)
decrease food » decreases food (Expand search), increase food (Expand search), decreases blood (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease migration decrease NOT decrease ) OR ( decrease food decreases aggression object ))~.