Perhaps you should try some spelling variations:
the preprocessing » the processing (Expand search), their processing (Expand search), image preprocessing (Expand search)
decrease limb » decrease lipid (Expand search), decrease liver (Expand search), decrease hiv (Expand search)
limb decrease » will decrease (Expand search)
decrease the » decreases the (Expand search), decrease of (Expand search)
decrease and » decreases and (Expand search), decrease of (Expand search), decrease _ (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease in decrease the preprocessing ) OR ( decrease and decrease limb decrease ))~.