Talvez deva tentar algumas variações de ortografia:
strains decrease » strain decrease (Expandir a busca), statins decrease (Expandir a busca), strains increases (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
than strains » thai strains (Expandir a busca), human strains (Expandir a busca), and strains (Expandir a busca)
python api » python and (Expandir a busca)
code cdc » code cpc (Expandir a busca), code ctn (Expandir a busca)
cdc than » cdc the (Expandir a busca), cdc nhsn (Expandir a busca), dc that (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( code cdc than strains decrease ) OR ( python api python python programming ))~.