Talvez deva tentar algumas variações de ortografia:
unbiased estimation » based estimation (Expandir a busca), unbiased estimators (Expandir a busca), bias estimation (Expandir a busca)
python unbiased » python based (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)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
in python » _ python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder python unbiased estimation ) OR ( in python python python programming ))~.