Perhaps you should try some spelling variations:
decrease variable » decrease variability (Expand search), decreases available (Expand search), discrete variable (Expand search)
decrease further » increase further (Expand search), disease further (Expand search), decrease the (Expand search)
further decrease » further increase (Expand search), faster decrease (Expand search), the decrease (Expand search)
variable pattern » variable matter (Expand search), variate pattern (Expand search), variable water (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 of » decrease in (Expand search)
of decrease » or decrease (Expand search), not 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 of decrease further decrease ) OR ( decrease akt decrease variable pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease of decrease further decrease ) OR ( decrease akt decrease variable pattern ))*.