Perhaps you should try some spelling variations:
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
cells increases » cells increase (Expand search), cells decreases (Expand search)
decrease cells » decrease cell (Expand search), decreases cell (Expand search), decrease costs (Expand search)
hiv processing » air processing (Expand search), bait processing (Expand search), and processing (Expand search)
increases hiv » increase hiv (Expand search), increased hiv (Expand search), increases high (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 cells increases hiv processing ) OR ( decrease to decrease lesions decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease cells increases hiv processing ) OR ( decrease to decrease lesions decrease ))*.