Perhaps you should try some spelling variations:
decrease training » increased training (Expand search), disease training (Expand search), release training (Expand search)
training process » learning process (Expand search), training program (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (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.

• Removing quotes may allow a broader search: (( decrease _ decrease training process ) OR ( decrease akt decrease risk decrease ))~.