Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease action » decrease asian (Expand search), decrease adhesion (Expand search), decreases lactic (Expand search)
action object » action project (Expand search), vision object (Expand search)
decrease hiv » decrease in (Expand search), decrease their (Expand search), decreased high (Expand search)
hiv increase » diet increase (Expand search), acid increase (Expand search), and increase (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 to decrease hiv increase ) OR ( decrease during decrease action object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease to decrease hiv increase ) OR ( decrease during decrease action object ))*.