Talvez deva tentar algumas variações de ortografia:
without variational » without additional (Expandir a busca)
variational program » variational problem (Expandir a busca), variational problems (Expandir a busca), adaptational program (Expandir a busca)
decrease processes » disease processes (Expandir a busca), defense processes (Expandir a busca), decay processes (Expandir a busca)
decrease decrease » decrease release (Expandir a busca), disease decreases (Expandir a busca), decrease sucrose (Expandir a busca)
in decrease » in decreased (Expandir a busca), on decrease (Expandir a busca), pain decrease (Expandir a busca)
python and » python based (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: (( decrease in decrease decrease processes ) OR ( python AND without variational program ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease in decrease decrease processes ) OR ( python and without variational program ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease in decrease decrease processes ) OR ( python and without variational program ))*.