Talvez deva tentar algumas variações de ortografia:
"coherent precoding using algorithm problem" » "coherent precoding using algorithms problem" (Expandir a busca), "coherent precoding using algoritmo problema" (Expandir a busca), "coherent precoding using logarithm problem" (Expandir a busca), "coherent coding using algorithm problem" (Expandir a busca), "coherent breeding using algorithm problem" (Expandir a busca), "coherent pricing using algorithm problem" (Expandir a busca), "coherent precoding using algorithmic problem" (Expandir a busca), "coherent precoding dosing algorithm problem" (Expandir a busca)
"_ python python python programming" » "_ pythons python python programming" (Expandir a busca), "_ piton python python programming" (Expandir a busca), "_ pitons 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: "((\"coherent precoding using algorithm problem\") OR (\"_ python python python programming\"))~".
• Remover as aspas pode possibilitar buscas mais amplas: (( coherent precoding using algorithm problem ) OR ( _ python python python programming ))~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (("coherent precoding using algorithm problem") OR ("_ python python python programming"))*.