Talvez deva tentar algumas variações de ortografia:
perfusion technique » regression technique (Expandir a busca), emission technique (Expandir a busca), fusion techniques (Expandir a busca)
python perfusion » on perfusion (Expandir a busca), pet perfusion (Expandir a busca), non perfusion (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 perfusion technique ) OR ( in python python python programming ))~.