Talvez deva tentar algumas variações de ortografia:
layer programming » ladder programming (Expandir a busca), linear programming (Expandir a busca), cancer programming (Expandir a busca)
coder compaction » powder compaction (Expandir a busca), under compaction (Expandir a busca), roller compaction (Expandir a busca)
compaction layer » compaction water (Expandir a busca), compacted layer (Expandir a busca), compaction under (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 compaction layer programming ) OR ( in python python python programming ))~.