Talvez deva tentar algumas variações de ortografia:
level programming » bilevel programming (Expandir a busca), fetal programming (Expandir a busca), convex programming (Expandir a busca)
coder protocol » lower protocol (Expandir a busca), uncover protocol (Expandir a busca), cancer protocol (Expandir a busca)
protocol level » protocol label (Expandir a busca), protocolo leve (Expandir a busca), protocol legal (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (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: (( coder coder protocol level programming ) OR ( in python python python programming ))~.