Talvez deva tentar algumas variações de ortografia:
decrease suffering » depressive suffering (Expandir a busca), decreased sintering (Expandir a busca), increased buffering (Expandir a busca)
suffering objects » suffering subjects (Expandir a busca)
the decrease » to decrease (Expandir a busca), and decrease (Expandir a busca)
decrease hiv » decrease in (Expandir a busca), decrease their (Expandir a busca), decreased high (Expandir a busca)
hiv decrease » via decrease (Expandir a busca), hiv increase (Expandir a busca), will decrease (Expandir a busca)
decreases » decreased (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decreases the decrease AND decrease ) OR ( decrease hiv decrease suffering objects ))~.