Talvez deva tentar algumas variações de ortografia:
and programming » _ programming (Expandir a busca), goal programming (Expandir a busca)
root decrease » not decrease (Expandir a busca), dropout decrease (Expandir a busca), roads decrease (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
using root » causing root (Expandir a busca), during root (Expandir a busca), using robotic (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( using root decrease and programming ) OR ( python _ python python programming ))~.