Perhaps you should try some spelling variations:
optimum processing » optimum pressing (Expand search), minimum processing (Expand search), optical processing (Expand search)
discrete optimum » discrete optimal (Expand search), discrete maximum (Expand search), discrete time (Expand search)
decrease any » decreases and (Expand search), decreased and (Expand search), decreased ant (Expand search)
any discrete » and discrete (Expand search), daly discrete (Expand search), in discrete (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 the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (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 any discrete optimum processing ) OR ( decrease AND decrease the decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease any discrete optimum processing ) OR ( decrease and decrease the decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease any discrete optimum processing ) OR ( decrease and decrease the decrease ))*.