Perhaps you should try some spelling variations:
decrease ratio » decreased ratio (Expand search), decrease at (Expand search), decreased rate (Expand search)
ratio decrease » rate decrease (Expand search), to decrease (Expand search), rats decreases (Expand search)
decrease model » increase model (Expand search), decrease sod (Expand search), decrease total (Expand search)
pythons python » python python (Expand search), pitons python (Expand search), piton python (Expand search)
model process » modeling process (Expand search), model proteins (Expand search), del proceso (Expand search)
api pythons » api python (Expand search)
python api » python and (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 ratio decrease model process ) OR ( python api pythons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease ratio decrease model process ) OR ( python api pythons python programming ))*.