Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), disease during (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)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
decrees that » devices that (Expand search), trees that (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrees » or decreases (Expand search), or decrease (Expand search), of decree (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 OR decrees that decrease ) OR ( decrease during decrease fields effects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease or decrees that decrease ) OR ( decrease during decrease fields effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease or decrees that decrease ) OR ( decrease during decrease fields effects ))*.