Talvez deva tentar algumas variações de ortografia:
circuits programming » circular programming (Expandir a busca), circuits programmables (Expandir a busca), robots programming (Expandir a busca)
signal circuits » digital circuits (Expandir a busca), spatial circuits (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder signal » mode signal (Expandir a busca), power signal (Expandir a busca), power signals (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 signal circuits programming ) OR ( in python python python programming ))~.