Talvez deva tentar algumas variações de ortografia:
index programming » convex programming (Expandir a busca), and programming (Expandir a busca), end programming (Expandir a busca)
coder refraction » index refraction (Expandir a busca), corneal refraction (Expandir a busca), ocular refraction (Expandir a busca)
refraction index » refractive index (Expandir a busca), selection index (Expandir a busca), function index (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)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder refraction index programming ) OR ( _ python python python programming ))~.