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)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
decrease or » decrease of (Expandir a busca), decrease on (Expandir a busca), decrease in (Expandir a busca)
or decrease » of decrease (Expandir a busca), not decrease (Expandir a busca), to decrease (Expandir a busca)
python api » python and (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease or decrease ladder programming ) OR ( python api python python programming ))~.