Talvez deva tentar algumas variações de ortografia:
depressed fields » depressed aged (Expandir a busca), depressed areas (Expandir a busca), crossed fields (Expandir a busca)
during depressed » during depressive (Expandir a busca), during repressive (Expandir a busca), feeling depressed (Expandir a busca)
decrease during » increase during (Expandir a busca), increases during (Expandir a busca), increased during (Expandir a busca)
fields objects » fields effects (Expandir a busca), field subjects (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
and decrease » and decreases (Expandir a busca), and decreased (Expandir a busca), and increase (Expandir a busca)
decrease at » decrease akt (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
at decrease » rate decrease (Expandir a busca), that decrease (Expandir a busca), not decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease and decrease at decrease ) OR ( decrease during depressed fields objects ))~.