Perhaps you should try some spelling variations:
training decreases » training increases (Expand search)
decrease training » increased training (Expand search), disease training (Expand search), release training (Expand search)
decreases limb » decreases liver (Expand search), decreases glial (Expand search), decreases in (Expand search)
limb decrease » will decrease (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 hiv » decrease in (Expand search), decrease their (Expand search), decreased high (Expand search)
hiv pattern » uv pattern (Expand search), acid pattern (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 training decreases limb decrease ) OR ( decrease risk decrease hiv pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease training decreases limb decrease ) OR ( decrease risk decrease hiv pattern ))*.