Perhaps you should try some spelling variations:
further decrease » further increase (Expand search), faster decrease (Expand search), the decrease (Expand search)
disease further » decrease further (Expand search), disease fourth (Expand search), disorder further (Expand search)
decrease actor » decrease after (Expand search), decreased after (Expand search), decreases motor (Expand search)
actor object » action object (Expand search), alter object (Expand search), actor subjects (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: "(( disease further decrease _ decrease ) OR ( decrease OR decrease actor object ))~".
• Adding a wildcard symbol may retrieve word variants: (( disease further decrease _ decrease ) OR ( decrease OR decrease actor object ))*.