Perhaps you should try some spelling variations:
decrease learning » increases learning (Expand search), decreases weaning (Expand search), defense learning (Expand search)
increase with » increases with (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (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 an » decrease and (Expand search), decrease in (Expand search), decrease at (Expand search)
an increase » and increase (Expand search)
objects » object (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 an increase with decrease ) OR ( decrease akt decrease learning objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease an increase with decrease ) OR ( decrease akt decrease learning objects ))*.