Talvez deva tentar algumas variações de ortografia:
perceptions ranking » perceptions planning (Expandir a busca), perceptions regarding (Expandir a busca), perceptions parenting (Expandir a busca)
ranking programming » planning programming (Expandir a busca), training programming (Expandir a busca), thinking programming (Expandir a busca)
coder perceptions » coders perceptions (Expandir a busca), model perceptions (Expandir a busca), power perceptions (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 perceptions ranking programming ) OR ( python coding python python programming ))~.