Talvez deva tentar algumas variações de ortografia:
"surface optimization _ computer program" » "shape optimization _ computer program" (Expandir a busca), "resource optimization _ computer program" (Expandir a busca), "performance optimization _ computer program" (Expandir a busca)
"advanced pythons python computer programming" » "advanced pythons python computer programs" (Expandir a busca), "advanced methods python computer programming" (Expandir a busca), "advanced symphony python computer programming" (Expandir a busca), "advanced method python computer programming" (Expandir a busca), "advanced python python computer programming" (Expandir a busca), "advanced pitons python computer programming" (Expandir a busca), "advanced piton python computer 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: "((\"surface optimization _ computer program\") OR (\"advanced pythons python computer programming\"))~".
• Remover as aspas pode possibilitar buscas mais amplas: (( surface optimization _ computer program ) OR ( advanced pythons python computer programming ))~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (("surface optimization _ computer program") OR ("advanced pythons python computer programming"))*.