Talvez deva tentar algumas variações de ortografia:
computations in » computation in (Expandir a busca), computation of (Expandir a busca), computation and (Expandir a busca)
courses program » course program (Expandir a busca), course programs (Expandir a busca), courses pronera (Expandir a busca)
ranking python » ranking method (Expandir a busca), ranking position (Expandir a busca)
using ranking » using stacking (Expandir a busca), using resting (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
in courses » in discourses (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( AND computations in courses program ) OR ( using ranking python python programming ))*.