Perhaps you should try some spelling variations:
decrease diseased » decreases disease (Expand search), increase disease (Expand search), disease disease (Expand search)
diseased subjects » disease subjects (Expand search), disorder subjects (Expand search), treated subjects (Expand search)
decrease price » decrease pro (Expand search), decrease risk (Expand search)
price decrease » price increase (Expand search), juice decreases (Expand search), price increases (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
decreases and » decreases in (Expand search), decreases _ (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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 price decrease that decrease ) OR ( decreases AND decrease diseased subjects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease price decrease that decrease ) OR ( decreases and decrease diseased subjects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease price decrease that decrease ) OR ( decreases and decrease diseased subjects ))*.