Perhaps you should try some spelling variations:
during increased » during increasing (Expand search), producing increased (Expand search), favoring increased (Expand search)
decrease leaming » decreases weaning (Expand search), decreases healing (Expand search), decrease lodging (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
leaming objects » learning objects (Expand search), naming objects (Expand search), teaching objects (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)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease akt decrease during increased ) OR ( decrease _ decrease leaming objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease during increased ) OR ( decrease _ decrease leaming objects ))*.