Talvez deva tentar algumas variações de ortografia:
django challenges » change challenges (Expandir a busca), janeiro challenges (Expandir a busca), changes challenges (Expandir a busca)
java programming » and programming (Expandir a busca), based programming (Expandir a busca), goal programming (Expandir a busca)
into programming » to programming (Expandir a busca), and programming (Expandir a busca), logo programming (Expandir a busca)
challenges into » challenges in (Expandir a busca), challenges insa (Expandir a busca), challenges and (Expandir a busca)
python django » python usando (Expandir a busca)
coder python » codigo python (Expandir a busca), compra python (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
python java » python data (Expandir a busca), python capaz (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder python java programming ) OR ( python django challenges into programming ))~.