Perhaps you should try some spelling variations:
based preprocessing » based processing (Expand search), and preprocessing (Expand search), data preprocessing (Expand search)
increase based » increase caused (Expand search), increasing based (Expand search), increases basal (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 may » decrease at (Expand search), decrease by (Expand search), decrease human (Expand search)
may increase » an increase (Expand search), can increase (Expand search), and increase (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not 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 may increase based preprocessing ) OR ( decrease that decrease toc decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease may increase based preprocessing ) OR ( decrease that decrease toc decrease ))*.