Talvez deva tentar algumas variações de ortografia:
decrease processes » disease processes (Expandir a busca), defense processes (Expandir a busca), decay processes (Expandir a busca)
disease decrease » disease decreases (Expandir a busca), diseases decreases (Expandir a busca), disease increased (Expandir a busca)
decrease spot » decrease sod (Expandir a busca), decrease soon (Expandir a busca), decrease of (Expandir a busca)
spot disease » host disease (Expandir a busca), wilt disease (Expandir a busca)
piton python » pitons python (Expandir a busca), in python (Expandir a busca), with python (Expandir a busca)
python and » python based (Expandir a busca)
and piton » and piston (Expandir a busca), and pion (Expandir a busca), and iton (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease spot disease decrease processes ) OR ( python and piton python programming ))~.