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), taping decrease (Expand search)
decrease wooden » decrease food (Expand search), decrease burden (Expand search), decrease model (Expand search)
decrease not » decrease akt (Expand search), decrease at (Expand search), decrease or (Expand search)
not increase » and increase (Expand search), an increase (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
objects » object (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 during decrease NOT increase ) OR ( decrease of decrease wooden objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during decrease not increase ) OR ( decrease of decrease wooden objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during decrease not increase ) OR ( decrease of decrease wooden objects ))*.