Perhaps you should try some spelling variations:
by preprocessing » the preprocessing (Expand search), and preprocessing (Expand search), by processing (Expand search)
decrease rapidly » disease rapidly (Expand search), decrease lipid (Expand search)
rapidly decrease » rapid decrease (Expand search), rapid increase (Expand search), taping decrease (Expand search)
with decreased » with increased (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
decreased by » decreased in (Expand search), increased by (Expand search), decreased il (Expand search)
decrease may » decrease at (Expand search), decrease by (Expand search), decrease human (Expand search)
may decrease » may increase (Expand search), can decrease (Expand search), to 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 with decreased by preprocessing ) OR ( decrease rapidly decrease may decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease with decreased by preprocessing ) OR ( decrease rapidly decrease may decrease ))*.