Talvez deva tentar algumas variações de ortografia:
burden decreases » burgers decreases (Expandir a busca), brain decreases (Expandir a busca), urea decreases (Expandir a busca)
decrease burden » disease burden (Expandir a busca), decrease further (Expandir a busca)
decrease that » decrease the (Expandir a busca), decrease at (Expandir a busca), decrees that (Expandir a busca)
that decrease » that increase (Expandir a busca), that increases (Expandir a busca), not decrease (Expandir a busca)
decreases and » decreases in (Expandir a busca), decreases _ (Expandir a busca)
decrease akt » decrease at (Expandir a busca), decrease and (Expandir a busca), decrease after (Expandir a busca)
akt decrease » and decrease (Expandir a busca), not decrease (Expandir a busca), any decrease (Expandir a busca)
and object » an object (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 that decrease akt decrease ) OR ( decrease burden decreases AND object ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease that decrease akt decrease ) OR ( decrease burden decreases and object ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease that decrease akt decrease ) OR ( decrease burden decreases and object ))*.