Talvez deva tentar algumas variações de ortografia:
decrease predation » decrease prevention (Expandir a busca), increased predation (Expandir a busca), decreased production (Expandir a busca)
predation decrease » reduction decreases (Expandir a busca), retention decrease (Expandir a busca), predation defence (Expandir a busca)
decrease speed » decrease need (Expandir a busca), decreased sperm (Expandir a busca), decreases sperm (Expandir a busca)
speed matters » speed patterns (Expandir a busca), speed meters (Expandir a busca), speed skaters (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)
decrease to » decreased to (Expandir a busca), decrease toc (Expandir a busca), decrease the (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease at decrease predation decrease ) OR ( decrease to decrease speed matters ))~.