Perhaps you should try some spelling variations:
decrease processes » disease processes (Expand search), decay processes (Expand search), increase process (Expand search)
decrease decrease » decrease release (Expand search), disease decreases (Expand search), decreases disease (Expand search)
regions decrease » lesions decrease (Expand search), response decrease (Expand search), lesions decreased (Expand search)
spatial regions » spatial regional (Expand search), spatial regimes (Expand search), spatial relations (Expand search)
decrease after » increase after (Expand search), disease after (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease with (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 decrease processes ) OR ( spatial regions decrease decrease after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease decrease processes ) OR ( spatial regions decrease decrease after ))*.