Talvez deva tentar algumas variações de ortografia:
ladder programming » linear programming (Expandir a busca), and programming (Expandir a busca), based programming (Expandir a busca)
decrease ladder » decreased bladder (Expandir a busca), decrease after (Expandir a busca), decrease litter (Expandir a busca)
based python » based path (Expandir a busca), and python (Expandir a busca), gate python (Expandir a busca)
python code » python coding (Expandir a busca), python redes (Expandir a busca)
code based » case based (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease _ decrease ladder programming ) OR ( python code based python programming ))~.