Talvez deva tentar algumas variações de ortografia:
decrease disease » decreases disease (Expandir a busca), increase disease (Expandir a busca), increased disease (Expandir a busca)
decrease soil » decreases soil (Expandir a busca), increase soil (Expandir a busca), decrease il (Expandir a busca)
soil decrease » oil decreases (Expandir a busca), soil increase (Expandir a busca), bail decreases (Expandir a busca)
python redes » python regius (Expandir a busca), python code (Expandir a busca)
redes pert » rede pert (Expandir a busca), redes petri (Expandir a busca), redes petro (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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