Perhaps you should try some spelling variations:
decrease human » increase human (Expand search), disease human (Expand search), decrease asian (Expand search)
human decrease » human deceased (Expand search), human increase (Expand search), human disease (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
fear decrease » break decrease (Expand search), merr decreases (Expand search), can decrease (Expand search)
decrease spp » decrease sod (Expand search), decrease std (Expand search), decrease soon (Expand search)
spp decrease » spp increase (Expand search), speed decrease (Expand search), help decrease (Expand search)
breathing » breaking (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease spp decrease fear decrease ) OR ( decrease human decrease breathing pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease spp decrease fear decrease ) OR ( decrease human decrease breathing pattern ))*.