Talvez deva tentar algumas variações de ortografia:
decrease pisa » decrease risk (Expandir a busca), decrease in (Expandir a busca), decrease with (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
and decrease » and decreases (Expandir a busca), and decreased (Expandir a busca), and increase (Expandir a busca)
pisa program » pisa programa (Expandir a busca), pisa programme (Expandir a busca), vida program (Expandir a busca)
piton python » pitons python (Expandir a busca), in python (Expandir a busca), with python (Expandir a busca)
python code » python coding (Expandir a busca), python redes (Expandir a busca)
code piton » code position (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease and decrease pisa program ) OR ( python code piton python programming ))~.