Talvez deva tentar algumas variações de ortografia:
factors effective » factors affecting (Expandir a busca), factors effects (Expandir a busca), factors protective (Expandir a busca)
effective program » incentive program (Expandir a busca), educative program (Expandir a busca), active program (Expandir a busca)
coder factors » power factors (Expandir a busca), counter factors (Expandir a busca), cancer factors (Expandir a busca)
python coding » 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 coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder factors effective program ) OR ( python coding python python programming ))~.