Talvez deva tentar algumas variações de ortografia:
controlled problem » controlled probe (Expandir a busca), control problem (Expandir a busca), controlled parallel (Expandir a busca)
using controlled » during controlled (Expandir a busca), blind controlled (Expandir a busca), and controlled (Expandir a busca)
python coding » python codigo (Expandir a busca), action coding (Expandir a busca), python code (Expandir a busca)
coding python » codigo python (Expandir a busca), codigos python (Expandir a busca), using python (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder drying » powder drying (Expandir a busca), under drying (Expandir a busca), coffee drying (Expandir a busca)
drying using » drying in (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder drying using controlled problem ) OR ( python coding python python programming ))~.