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)
social objects » social subjects (Expand search), social objectives (Expand search), social projects (Expand search)
decree social » degree social (Expand search), three social (Expand search), free social (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decree » and decree (Expand search), law decree (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 decrease during decrease ) OR ( decrease at decree social objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease or decrease during decrease ) OR ( decrease at decree social objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease or decrease during decrease ) OR ( decrease at decree social objects ))*.