Perhaps you should try some spelling variations:
decrease rapid » decrease lipid (Expand search), decreased ratio (Expand search), decrease and (Expand search)
rapid increase » brazil increase (Expand search), and increase (Expand search), acid increases (Expand search)
increase alter » increase after (Expand search), increase water (Expand search), increase factor (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)
alter object » matter object (Expand search), actor object (Expand search), water object (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease akt decrease _ decrease ) OR ( decrease rapid increase alter object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease _ decrease ) OR ( decrease rapid increase alter object ))*.