Talvez deva tentar algumas variações de ortografia:
robot programming » robots programming (Expandir a busca), goal programming (Expandir a busca), cone programming (Expandir a busca)
walking robot » walking robots (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
than walking » the walking (Expandir a busca), when walking (Expandir a busca), human walking (Expandir a busca)
using python » usando python (Expandir a busca), in python (Expandir a busca)
coder than » louder than (Expandir a busca), closer than (Expandir a busca), older than (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder than walking robot programming ) OR ( using python python python programming ))~.