Perhaps you should try some spelling variations:
their processual » the processual (Expand search), their processing (Expand search), their processes (Expand search)
during increased » during increasing (Expand search), producing increased (Expand search), favoring increased (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (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 can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can decrease » can increase (Expand search), and decrease (Expand search), to 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 their processual ) OR ( decrease can decrease during increased ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease their processual ) OR ( decrease can decrease during increased ))*.