Talvez deva tentar algumas variações de ortografia:
canine pathogen » main pathogen (Expandir a busca), feline pathogen (Expandir a busca), maize pathogen (Expandir a busca)
pathogen vector » pathogen vectors (Expandir a busca)
vector computer » vector computers (Expandir a busca), reactors computer (Expandir a busca), vector competent (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
using python » usando python (Expandir a busca), in python (Expandir a busca)
using using » using fusing (Expandir a busca), housing using (Expandir a busca), nursing using (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( canine pathogen vector computer program ) OR ( using using python python programming ))~.