Perhaps you should try some spelling variations:
in reprocessing » and reprocessing (Expand search), in processing (Expand search), of reprocessing (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 risk » decreased risk (Expand search), increase risk (Expand search), decrease hiv (Expand search)
risk increase » diet increase (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 _ decrease in reprocessing ) OR ( decrease that decrease risk increase ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease in reprocessing ) OR ( decrease that decrease risk increase ))*.