Talvez deva tentar algumas variações de ortografia:
modulation vpython » modulation vector (Expandir a busca), modulation method (Expandir a busca)
code programming » cone programming (Expandir a busca), core programming (Expandir a busca), co programming (Expandir a busca)
vpython python » python python (Expandir a busca), pythons python (Expandir a busca), piton python (Expandir a busca)
on modulation » in modulation (Expandir a busca), down modulation (Expandir a busca), and modulation (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)
python code » python coding (Expandir a busca), python redes (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder python code programming ) OR ( on modulation vpython python programming ))~.