Talvez deva tentar algumas variações de ortografia:
statistical index » statistical indices (Expandir a busca), statistical and (Expandir a busca), statistical based (Expandir a busca)
code decrease » oxide decrease (Expandir a busca), roads decrease (Expandir a busca), to decrease (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
index python » in python (Expandir a busca), and python (Expandir a busca), lines python (Expandir a busca)
python code » python coding (Expandir a busca), python redes (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( statistical index python code decrease ) OR ( _ python python python programming ))~.