Perhaps you should try some spelling variations:
yield processing » field processing (Expand search), fields processing (Expand search), seed processing (Expand search)
decreases yield » increases yield (Expand search), decreases cell (Expand search), decreases il (Expand search)
toc decreases » c decreases (Expand search), oic decreases (Expand search), co2 decreases (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
decrease il » decreased il (Expand search), decrease in (Expand search), decrease hiv (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease toc decreases yield processing ) OR ( decrease rate decrease il decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decreases yield processing ) OR ( decrease rate decrease il decrease ))*.