Talvez deva tentar algumas variações de ortografia:
program efficacy » program effects (Expandir a busca), proxy efficacy (Expandir a busca), program effect (Expandir a busca)
efficacy coding » efficacy according (Expandir a busca), efficacy during (Expandir a busca), efficacy dacing (Expandir a busca)
coder program » cooper program (Expandir a busca), proder program (Expandir a busca), closer program (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)
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 program efficacy coding ) OR ( in python python python programming ))~.