Perhaps you should try some spelling variations:
decrease observed » case observed (Expand search), decay observed (Expand search)
observed program » observer program (Expand search), observed from (Expand search), blended program (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
python api » python and (Expand search)

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

• Removing quotes may allow a broader search: (( decrease their decrease observed program ) OR ( python api python python programming ))~.