Talvez deva tentar algumas variações de ortografia:
coder concurrence » control concurrence (Expandir a busca), of concurrence (Expandir a busca), the concurrence (Expandir a busca)
concurrence of » occurrence of (Expandir a busca), ocurrence of (Expandir a busca), recurrence of (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 concurrence of programming ) OR ( in python python python programming ))~.