Perhaps you should try some spelling variations:
based preprocessing » based processing (Expand search), and preprocessing (Expand search), data preprocessing (Expand search)
decrease based » decreased base (Expand search), decrease blood (Expand search)
decreased rate » increased rate (Expand search), decreased base (Expand search), decreased native (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), the decrease (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease AND decrease based preprocessing ) OR ( decreased rate decrease to decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease based preprocessing ) OR ( decreased rate decrease to decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease based preprocessing ) OR ( decreased rate decrease to decrease ))*.