Talvez deva tentar algumas variações de ortografia:
"coder propagation models from problem" » "coder propagation model from problem" (Expandir a busca), "mode propagation models from problem" (Expandir a busca), "model propagation models from problem" (Expandir a busca), "modes propagation models from problem" (Expandir a busca), "coder propagation models from protium" (Expandir a busca)
"using coding python python programming" » "using codigo python python programming" (Expandir a busca), "using codigos python python programming" (Expandir a busca), "using using python python programming" (Expandir a busca), "using coding pythons python programming" (Expandir a busca), "using coding piton python programming" (Expandir a busca), "using coding pitons python programming" (Expandir a busca), "using coping python python programming" (Expandir a busca), "using coating python python programming" (Expandir a busca), "using cooking python python programming" (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "((\"coder propagation models from problem\") OR (\"using coding python python programming\"))~".
• Remover as aspas pode possibilitar buscas mais amplas: (( coder propagation models from problem ) OR ( using coding python python programming ))~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (("coder propagation models from problem") OR ("using coding python python programming"))*.