Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease fields » decreases yield (Expand search), increase field (Expand search)
fields effects » field effects (Expand search), field effect (Expand search), seeds effects (Expand search)
decrease pro » decrease food (Expand search), decrease treg (Expand search), decrease in (Expand search)
pro decrease » to decrease (Expand search), or decrease (Expand search), price decrease (Expand search)
decrease at » decrease and (Expand search), decrease in (Expand search), decrease of (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and 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 pro decrease at decrease ) OR ( increase during decrease fields effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease pro decrease at decrease ) OR ( increase during decrease fields effects ))*.