Talvez deva tentar algumas variações de ortografia:
sampling pitons » sampling positions (Expandir a busca), sampling plans (Expandir a busca), sampling plots (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), pytm python (Expandir a busca)
python code » python coding (Expandir a busca), python redes (Expandir a busca)
on python » in python (Expandir a busca), of python (Expandir a busca), _ python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( sampling pitons python code decrease ) OR ( on python python python programming ))~.