Perhaps you should try some spelling variations:
decreased running » decreased during (Expand search), decreases weaning (Expand search)
litter decreased » litter decrease (Expand search), life decreased (Expand search), with decreased (Expand search)
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)
decrease litter » increased litter (Expand search), decrease after (Expand search), decreases liver (Expand search)
running objects » counting objects (Expand search), cutting objects (Expand search), using objects (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (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 decrease ) OR ( decrease litter decreased running objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during decrease not decrease ) OR ( decrease litter decreased running objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during decrease not decrease ) OR ( decrease litter decreased running objects ))*.