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)
perl programming » cell programming (Expandir a busca), period programming (Expandir a busca), fetal programming (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
decrease std » decrease sod (Expandir a busca), decrease and (Expandir a busca), decrease at (Expandir a busca)
std decrease » to decrease (Expandir a busca), and decrease (Expandir a busca), spp decrease (Expandir a busca)
tools perl » tools petri (Expandir a busca), tools person (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease std decrease defense processes ) OR ( python python tools perl programming ))~.