Talvez deva tentar algumas variações de ortografia:
diffraction data » diffraction and (Expandir a busca), diffraction xrd (Expandir a busca), diffraction of (Expandir a busca)
cdc diffraction » ray diffraction (Expandir a busca), and diffraction (Expandir a busca), of diffraction (Expandir a busca)
data decrease » rate decrease (Expandir a busca), data increase (Expandir a busca), ratio decrease (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
code cdc » code cpc (Expandir a busca), code ctn (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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