Talvez deva tentar algumas variações de ortografia:
decreases variability » decrease variability (Expandir a busca), decreased viability (Expandir a busca), increases viability (Expandir a busca)
training decreases » training increases (Expandir a busca)
decrease training » increased training (Expandir a busca), disease training (Expandir a busca), release training (Expandir a busca)
decrease of » decrease in (Expandir a busca)
of decrease » or decrease (Expandir a busca), not decrease (Expandir a busca), to decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease of decrease _ decrease ) OR ( decrease training decreases variability of ))~.