Perhaps you should try some spelling variations:
by preprocessing » the preprocessing (Expand search), and preprocessing (Expand search), by processing (Expand search)
can decreased » can decrease (Expand search), corn decreased (Expand search), and decreased (Expand search)
decrease loss » decrease costs (Expand search), decrease low (Expand search), decrease blood (Expand search)
loss decrease » loss decreases (Expand search), to decrease (Expand search), not decrease (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
decreased by » decreased in (Expand search), increased by (Expand search), decreased il (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (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 can decreased by preprocessing ) OR ( decrease OR decrease loss decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease can decreased by preprocessing ) OR ( decrease or decrease loss decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decreased by preprocessing ) OR ( decrease or decrease loss decrease ))*.