Talvez deva tentar algumas variações de ortografia:
diffraction criterion » abstraction criterion (Expandir a busca), distinction criterion (Expandir a busca), diffraction scattering (Expandir a busca)
criterion decrease » retention decrease (Expandir a busca), friction decrease (Expandir a busca), protein decrease (Expandir a busca)
code diffraction » powder diffraction (Expandir a busca), wedge diffraction (Expandir a busca), wave diffraction (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
code code » code cdc (Expandir a busca)
in python » _ python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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