Talvez deva tentar algumas variações de ortografia:
system programming » systems programming (Expandir a busca), based programming (Expandir a busca), cortex programming (Expandir a busca)
authoring system » tutoring system (Expandir a busca), tutoring systems (Expandir a busca), sputtering system (Expandir a busca)
coder authoring » co authoring (Expandir a busca), open authoring (Expandir a busca), video authoring (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 authoring system programming ) OR ( api python python python programming ))~.