Talvez deva tentar algumas variações de ortografia:
defense processes » defense process (Expandir a busca), decrease processes (Expandir a busca), disease processes (Expandir a busca)
decrease defense » defense defense (Expandir a busca), decrease release (Expandir a busca), decreases disease (Expandir a busca)
system function » ecosystem function (Expandir a busca), systemic functional (Expandir a busca), ecosystem functions (Expandir a busca)
function based » reaction based (Expandir a busca), reflection based (Expandir a busca)
python system » action system (Expandir a busca)
decrease std » decrease sod (Expandir a busca), decrease and (Expandir a busca), decrease at (Expandir a busca)
std decrease » to decrease (Expandir a busca), and decrease (Expandir a busca), spp decrease (Expandir a busca)
program » programa (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease std decrease defense processes ) OR ( python system function based program ))~.