Talvez deva tentar algumas variações de ortografia:
by reprogramming » cell reprogramming (Expandir a busca), c programming (Expandir a busca), 1 programming (Expandir a busca)
python sampling » method sampling (Expandir a busca), thin sampling (Expandir a busca), methods sampling (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder python » codigo python (Expandir a busca), compra python (Expandir a busca)
using python » usando python (Expandir a busca), in python (Expandir a busca)
sampling by » sampling _ (Expandir a busca), sampling in (Expandir a busca), sampling bias (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder python sampling by reprogramming ) OR ( using python python python programming ))~.