Talvez deva tentar algumas variações de ortografia:
frequency python » frequency method (Expandir a busca), frequency methods (Expandir a busca), frequency pattern (Expandir a busca)
code programming » cone programming (Expandir a busca), core programming (Expandir a busca), co programming (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)
c frequency » _ frequency (Expandir a busca), 1 frequency (Expandir a busca), 2 frequency (Expandir a busca)
python c » 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 code programming ) OR ( python c frequency python programming ))~.