Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
hiv processing » air processing (Expand search), bait processing (Expand search), and processing (Expand search)
depressed hiv » depressao hiv (Expand search), depressed i (Expand search), suppressed hiv (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)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
pain decrease » can decrease (Expand search), taping decrease (Expand search), strain 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 during depressed hiv processing ) OR ( decrease that decrease pain decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed hiv processing ) OR ( decrease that decrease pain decrease ))*.