Talvez deva tentar algumas variações de ortografia:
node diffraction » non diffraction (Expandir a busca), powder diffraction (Expandir a busca), wedge diffraction (Expandir a busca)
diffraction line » diffraction in (Expandir a busca), diffraction limit (Expandir a busca), diffraction light (Expandir a busca)
line decrease » life decrease (Expandir a busca), limb decrease (Expandir a busca), ligand decrease (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
code node » code code (Expandir a busca), code notes (Expandir a busca), code noir (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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