Talvez deva tentar algumas variações de ortografia:
defense processes » defense process (Expandir a busca), decrease processes (Expandir a busca), disease processes (Expandir a busca)
decrease defense » defense defense (Expandir a busca), decrease release (Expandir a busca), decreases disease (Expandir a busca)
pbl programming » perl programming (Expandir a busca), by programming (Expandir a busca), l programming (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
python method » action method (Expandir a busca)
decrease at » decrease akt (Expandir a busca), decrease and (Expandir a busca), decrease in (Expandir a busca)
at decrease » rate decrease (Expandir a busca), that decrease (Expandir a busca), and decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease at decrease defense processes ) OR ( python python method pbl programming ))~.