Talvez deva tentar algumas variações de ortografia:
decrease placement » decreased platelet (Expandir a busca), desse placement (Expandir a busca)
placement program » placement problem (Expandir a busca), payment program (Expandir a busca), enhancement program (Expandir a busca)
density decrease » density increase (Expandir a busca), obesity decreases (Expandir a busca), density areas (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
code density » node density (Expandir a busca), model density (Expandir a busca), bone density (Expandir a busca)
python code » python coding (Expandir a busca), python redes (Expandir a busca)
code python » codigo python (Expandir a busca), pacote python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( code density decrease placement program ) OR ( python code python python programming ))~.