Talvez deva tentar algumas variações de ortografia:
vpython collisions » vpython colisoes (Expandir a busca), proton collisions (Expandir a busca), photon collisions (Expandir a busca)
collisions python » collisions within (Expandir a busca), collisions with (Expandir a busca), collisions on (Expandir a busca)
decay processes » levy processes (Expandir a busca), key processes (Expandir a busca), memory processes (Expandir a busca)
decrease decay » decreases pecan (Expandir a busca), decrease fear (Expandir a busca), decrease renal (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
car decrease » can decrease (Expandir a busca), or decrease (Expandir a busca), may decrease (Expandir a busca)
code car » code can (Expandir a busca), code circ (Expandir a busca), code an (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( code car decrease decay processes ) OR ( vpython collisions python python programming ))~.