Perhaps you should try some spelling variations:
decrease lowering » decrease lodging (Expand search), decrease owing (Expand search), decrease suffering (Expand search)
lowering effects » lowering effect (Expand search), loading effects (Expand search), looping effects (Expand search)
rats decreases » and decreases (Expand search), but decreases (Expand search), stress decreases (Expand search)
decrease rats » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
decreases hiv » decrease hiv (Expand search), decreases hip (Expand search), decreases high (Expand search)
hiv decrease » via decrease (Expand search), hiv increase (Expand search), will decrease (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 rats decreases hiv decrease ) OR ( decrease _ decrease lowering effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rats decreases hiv decrease ) OR ( decrease _ decrease lowering effects ))*.