Perhaps you should try some spelling variations:
field processor » field processing (Expand search), field progression (Expand search), fields processing (Expand search)
decrease faster » decrease after (Expand search), decrease further (Expand search), decreased after (Expand search)
faster decrease » rate decrease (Expand search)
increase field » increase yield (Expand search), increases yield (Expand search), increased yield (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not increase » and increase (Expand search), an 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 NOT increase field processor ) OR ( decrease to decrease faster decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease not increase field processor ) OR ( decrease to decrease faster decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease not increase field processor ) OR ( decrease to decrease faster decrease ))*.