Talvez deva tentar algumas variações de ortografia:
disease cases » disease case (Expandir a busca), disease caused (Expandir a busca), disease cross (Expandir a busca)
cases process » cares process (Expandir a busca), cases processed (Expandir a busca), wastes process (Expandir a busca)
decrease old » decrease food (Expandir a busca), decrease of (Expandir a busca), decrease and (Expandir a busca)
python redes » python regius (Expandir a busca), python code (Expandir a busca)
old disease » and disease (Expandir a busca), cord diseases (Expandir a busca), and diseases (Expandir a busca)
peer » per (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease old disease cases process ) OR ( python redes peer python programming ))~.