Talvez deva tentar algumas variações de ortografia:
efficient programming » efficient processing (Expandir a busca), fragment programming (Expandir a busca)
promote efficient » promotes efficient (Expandir a busca), probiotic efficient (Expandir a busca), propolis efficient (Expandir a busca)
coder promote » powder promote (Expandir a busca), node promote (Expandir a busca), copper promoted (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 promote efficient programming ) OR ( in python python python programming ))~.