Perhaps you should try some spelling variations:
decrease their » increase their (Expand search), decreases the (Expand search)
their disease » the disease (Expand search), hair diseases (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)
disease il » disease ild (Expand search), disease in (Expand search), disease is (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 the decrease _ professors ) OR ( decrease their disease il decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the decrease _ professors ) OR ( decrease their disease il decrease ))*.