Talvez deva tentar algumas variações de ortografia:
line programming » linear programming (Expandir a busca), cone programming (Expandir a busca), linear programmin (Expandir a busca)
cotton string » cotton strips (Expandir a busca), cotton sowing (Expandir a busca), cotton strip (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder cotton » over cotton (Expandir a busca), under cotton (Expandir a busca), model cotton (Expandir a busca)
using python » usando python (Expandir a busca), in python (Expandir a busca)
string line » string like (Expandir a busca), string links (Expandir a busca), string in (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder cotton string line programming ) OR ( using python python python programming ))~.