Talvez deva tentar algumas variações de ortografia:
sampling python » sampling method (Expandir a busca), sampling position (Expandir a busca), sampling methods (Expandir a busca)
decrease based » decreased base (Expandir a busca), decrease blood (Expandir a busca)
python complex » python computer (Expandir a busca), prison complex (Expandir a busca)
code decrease » oxide decrease (Expandir a busca), roads decrease (Expandir a busca), to decrease (Expandir a busca)
code code » code cdc (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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