Talvez deva tentar algumas variações de ortografia:
reverse calculation » reverse circulation (Expandir a busca), levels calculation (Expandir a busca), recursive calculation (Expandir a busca)
calculation program » simulation program (Expandir a busca), stimulation program (Expandir a busca), stimulation programs (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
cpp reverse » c30 reverse (Expandir a busca), can reverse (Expandir a busca), up reverse (Expandir a busca)
python gate » python data (Expandir a busca), python based (Expandir a busca)
gate python » pacote python (Expandir a busca)
code cpp » code cpc (Expandir a busca), code app (Expandir a busca), code ctn (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( code cpp reverse calculation program ) OR ( python gate python python programming ))~.