Perhaps you should try some spelling variations:
decreases yield » increases yield (Expand search), decreases cell (Expand search), decreases il (Expand search)
decrease urea » decrease treg (Expand search), decrease burden (Expand search), decreases areas (Expand search)
urea decrease » urea increases (Expand search), the decrease (Expand search), or decrease (Expand search)
toc decreases » c decreases (Expand search), oic decreases (Expand search), co2 decreases (Expand search)
yield effects » field effects (Expand search), fields effects (Expand search), field effect (Expand search)
decrease toc » decrease the (Expand search), decreased to (Expand search), decrease on (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (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 urea decrease of decrease ) OR ( decrease toc decreases yield effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease urea decrease of decrease ) OR ( decrease toc decreases yield effects ))*.