Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
soil processing » oil processing (Expand search), coal processing (Expand search), oils processing (Expand search)
decreases soil » increases soil (Expand search), decreases local (Expand search), decreases in (Expand search)
not decreases » not decrease (Expand search), not decreased (Expand search), nfoh decreases (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)
decrease not » decrease of (Expand search), decrease at (Expand search), decrease on (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 akt decrease during decrease ) OR ( decrease NOT decreases soil processing ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease akt decrease during decrease ) OR ( decrease not decreases soil processing ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease during decrease ) OR ( decrease not decreases soil processing ))*.