Talvez deva tentar algumas variações de ortografia:
pheromone compliant » pheromone component (Expandir a busca), pheromone components (Expandir a busca)
compliant control » compliance control (Expandir a busca), compliance controle (Expandir a busca), complexity control (Expandir a busca)
using using » housing using (Expandir a busca), aging using (Expandir a busca), ring using (Expandir a busca)
pion python » piton python (Expandir a busca), pitons python (Expandir a busca), in python (Expandir a busca)
using pion » using pixe (Expandir a busca), using pisa (Expandir a busca), using pid (Expandir a busca)
codes » modes (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( codes pheromone compliant control program ) OR ( using using pion python programming ))~.