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 with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (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 with decrease observed program ) OR ( python api python python programming ))~.