Talvez deva tentar algumas variações de ortografia:
lesson observation » design observation (Expandir a busca), election observation (Expandir a busca), action observation (Expandir a busca)
observation on » observations on (Expandir a busca), observation of (Expandir a busca), observation in (Expandir a busca)
on programming » in programming (Expandir a busca), cone programming (Expandir a busca), and programming (Expandir a busca)
coding python » codigo python (Expandir a busca), codigos python (Expandir a busca), using python (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder lesson » older lessons (Expandir a busca), modelo lesson (Expandir a busca), video lesson (Expandir a busca)
using coding » using coping (Expandir a busca), using coating (Expandir a busca), using cooking (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder lesson observation on programming ) OR ( using coding python python programming ))~.