Talvez deva tentar algumas variações de ortografia:
teaching programming » teaching program (Expandir a busca)
authoring teaching » tutoring teaching (Expandir a busca), authorial teaching (Expandir a busca), during teaching (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 teaching programming ) OR ( _ python python python programming ))~.