Talvez deva tentar algumas variações de ortografia:
taper frictional » the frictional (Expandir a busca), order fractional (Expandir a busca), taper functions (Expandir a busca)
detection method » detection methods (Expandir a busca), selection methods (Expandir a busca), extraction method (Expandir a busca)
frictional and » fictional and (Expandir a busca), friction and (Expandir a busca), frictions and (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
using codigo » using indigo (Expandir a busca), using coding (Expandir a busca), using codium (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( taper frictional and detection method ) OR ( using codigo python python programming ))~.