Talvez deva tentar algumas variações de ortografia:
perl programming » cell programming (Expandir a busca), period programming (Expandir a busca), fetal programming (Expandir a busca)
coder collision » or collision (Expandir a busca), dose collision (Expandir a busca), odd collision (Expandir a busca)
collision perl » collision cell (Expandir a busca), collision kernel (Expandir a busca), collision terms (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)
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: (( coder coder collision perl programming ) OR ( python code python python programming ))~.