Talvez deva tentar algumas variações de ortografia:
ion recognition » in recognition (Expandir a busca), on recognition (Expandir a busca), non recognition (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder coding » modern coding (Expandir a busca), color coding (Expandir a busca), odor coding (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
coding ion » coding in (Expandir a busca), coding on (Expandir a busca), encoding ion (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder coding ion recognition ) OR ( _ python python python programming ))~.