Perhaps you should try some spelling variations:
vibration decreases » maturation decreases (Expand search), starvation decreases (Expand search), vegetation decreases (Expand search)
decrease vibration » decrease migration (Expand search), disease vibration (Expand search), decrease predation (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease and » decreases and (Expand search), decrease of (Expand search), decrease the (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
in object » an object (Expand search), en object (Expand search), and object (Expand search)

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: (( decrease AND decrease vibration decreases ) OR ( decrease rate decrease in object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease vibration decreases ) OR ( decrease rate decrease in object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease vibration decreases ) OR ( decrease rate decrease in object ))*.