Talvez deva tentar algumas variações de ortografia:
density hydrogram » density hydrographic (Expandir a busca), unit hydrogram (Expandir a busca), density diagram (Expandir a busca)
sampling density » sampling intensity (Expandir a busca), sampling design (Expandir a busca), stocking density (Expandir a busca)
coder sampling » under sampling (Expandir a busca), over sampling (Expandir a busca), core sampling (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 sampling density hydrogram ) OR ( in python python python programming ))~.