Talvez deva tentar algumas variações de ortografia:
propagation programming » production programming (Expandir a busca), creation programming (Expandir a busca), propagation grafting (Expandir a busca)
and propagation » crack propagation (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
coder and » code and (Expandir a busca), codes and (Expandir a busca), poder and (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder and propagation programming ) OR ( api python python python programming ))~.